MATERIALSSCIENCE &GINEERINGAStructural Materials: Properties,Mlcrostructure and ProcessingVolume A234-236 (1997)

llth International Conference on the Strength of Materials

25-29 August 1997, Prague, Czech Republic

Guest Editor: P. Lukas

EDITOR-IN-CHIEF

H. HERMAN

ASSOCIATE EDITORS

M. KOIWA

G. KOSTORZ

C.C. KOCH

Advisory Board

(MSE A and B)H. Herman, Chairman (USA)H. Curien (France)M.E. Fine (USA)A. Kelly, FRS (UK)R. Lang (Japan)H. Mughrabi (Germany)P. Rama Rao (India)

EDITORIAL BOARD

J. Agren (Sweden)

G. Ananthakrishna (India)R.J. Arsenault (USA)D. Brandon (Israel)H.K.D.H. Bhadeshia (UK)J. Cadek (Czech Republic)J.B. Cohen (USA)J. Driver (France)J.D. Embury (Canada)Y. Estrin (Australia)H. Fischmeister (Germany)C. Garcia de Andres (Spain)H. Gleiter (Germanv)M.W. Grabski (Poland)M. Kato (Japan)Y.G. Kim (Korea)C. Laird (USA)J. Lendvai (Hungary)W. Mader (Germany)M. McLean (UK)L. Priester (France)S. Sampath (USA)

V.K. Sarin (USA)P. Shen (Taiwan)M. Suery (France)S. Suresh (USA)N.S. Stoloff (USA)M. Taya (USA)A.K. Vasudevan (USA)A. Vevecka (Albania)B. Wilshire (UK)M. Yamaguchi (Japan)T.S. Yen (China)

PRINT AND ELECTRONIC

MEDIA REVIEW EDITOR

A.H. King (USA)

ADMINISTRATIVE EDITOR

Barbara Herman

AMSTERDAM—LAUSANNE—NEW YORK—OXFORD—SHANNON—TOKYO

ELSEVIER

Wmmm na?erialsgSSaBBr science &

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ELSEVIER Materials Science and Engineering A234-236 (1997) vii-xvii =========

Contents

Preface 1 xix

Preface xxi

Invited papers

The present experimental knowledge of dynamic strain ageing in binary f.c.c. solid solutions

C. Schwink, A. Nortmann (Braunschweig, Germany) 1

Mesoscopic simulations of dislocations and plasticityB. Devincre, L.P. Kubin (BP, France) 8

Mechanical properties of iron- and nickel-base aluminides

V. Paidar (Praha, Czech Republic) 15

Dispersion strengthening of intermetallics

E. Arzt, R. Behr, E. Gohring, P. Grahle, R.P. Mason (Stuttgart, Germany) 22

High temperature intergranular damage and fracture

V. Sklenicka (Brno, Czech Republic) 30

Elastic and plastic properties of thin films on substrates: nanoindentation techniquesW.D. Nix (Stanford, CA, USA) 37

Physical aspects of plastic instabilities

P. Lukac, J. Balik, F. Chmelik (Praha, Czech Republic) 45

Modelling crack tip plastic zones and brittle-ductile transitions

S.G. Roberts (Oxford, UK) 52

Structure and mechanical properties of ultrafine-grained metals

R.Z. Valiev (Ufa, Russia) 59

Fifty-year study of the Peierls-Nabarro stress

F.R.N. Nabarro (Pretoria, South Africa) 67

The strength of nanocrystalline metals with and without flaws

P.G. Sanders, C.J. Youngdahl, J.R. Weertman (IL, USA) 77

Contributed papers

Tensile yield and strain hardening of homogeneous ethylene copolymers compared with heterogeneous copolymersS. Elkoun, V. Gaucher-Miri, R. Seguela (Villeneuve d'Ascq, France) 83

Modelling of creep damage to estimate remaining life

H. C. Furtado (Rio de Janeiro, Brazil), I. Le May (SK, Canada) 87

High temperature creep of two nanocrystalline alloys

Q.P. Kong, B. Cai, M.L. Xiao (Hefei, People's Republic of China) 91

On the ductile to brittle transition in austenitic steel

P. Milliner (Stuttgart, Germany) 94

Dislocation structures in cyclically deformed copper bicrystals

Y.M. Hu, Z.G. Wang (Shenyang, People's Republic of China) 98

Deformation mechanisms operating in a tungsten heavy alloyE. Pink, S. Kumar (Leoben, Austria) 102

On the strain hardening behaviour of Al-Si-Mg casting alloys

Q.G. Wang, C.H. Caceres (Brisbane QLD, Australia) 106

In-situ cyclic deformation of Al single crystals in the HVEM and the concept of internal backstresses

M.E. Kassner (Corvallis, OR, USA) 110

Kinetics and statistics of jerky flow: experiments and computer simulations

M. Lebyodkin, L. Dunin-Barkovskii (Chernogolovka, Russia), Y. Brechet (Saint-Martin d'Heres, France), L. Kubin

(Chatillon, France), Y. Estrin (Nedlands, WA, Australia) 115

Shielding model of fracture in WC-Co

M. Kotoul (Brno, Czech Republic) 119

Creep studies of AZ91D pressure die casting

M. Regev, A. Rosen (Haifa, Israel), E. Aghion (Israel), 123

viii Contents

Effect of strain rate on low-cycle fatigue behaviour and mechanism of SiCp/Lyl2 compositeP. Yang, M. Zhang, F. Xu, S. Gong (Nanchang, People's Republic of China) 127

Investigation of damage and plasticity in LiF, NaCl and CaCO, single crystals under radiation of a pulse laser

V.A. Feodorov, I.V. Ushakov, V.P. Shelohvostov (Tambou, Russia) 132

Investigation of a growing fatigue crack by means of a discrete dislocation model

F.O. Riemelmoser, R. Pippan (Leoben, Austria) 135

Features of dynamic strain aging in high strength Al-Zn-Mg-Cu alloyK. Peng, W. Chen, H. Zhang, K.-W. Qian (Fujian, People's Republic of China) 138

Order of Fe3Al alloys and their yield stress

P. Kratochvil, J. Kopecek, J. Pesicka (Prague, Czech Republic) 142

The yield strength of iron alloys and the contribution of lattice bond

H. Hildebrand (Freiberg, Germany) 145

Analysis of bending of cross sections of tensile tested electrodeposited copper foils

J. Yang (Iksan, South Korea), S.-H. Lee (Kyongki, South Korea), D.N. Lee (Seoul, South Korea) 149

Creep behaviors of highly pure aluminum at lower temperaturesK. Ishikawa, H. Okuda, Y. Kobayashi (Saitama, Japan) 154

Influence of superconducting transition on low temperature jump-like deformation of metals and alloysV.V. Puslovalov (Kharkov, Ukraine) 157

A new understanding on the relation among microstructurc micro inlerfacial mechanical behaviours and macro

mechanical properties in cast iron

Z.R. He, G.X. Lin, S. Ji (Fuzhou, People's Republic of China) 161

Effect of ageing on the evolution of precipitates in AlSiCuMg alloysW. Reif (Berlin, Germany), J. Dutkiewicz, R. Ciach (Krakow, Poland), S. Yu (Berlin, Germany), J. Krol (Krakow,Poland) 165

The precipitation strengthening of directionally solidified Al Si Cu alloys

J. Krol (Krakow, Poland) 169

Activation energy of creep in <001>-oriented superalloy CMSX-4 single crystalsJ. Svoboda, P. Lukas (Brno, Czech Republic) 173

Unification of the Peierls and the Friedel models into a general combined theory of dislocation pinning

B.V. Petukhov (Moscow, Russia) 177

Fatigue properties of Al-Mg alloys with and without scandium

O. Roder, T. Wirtz, A. Gysler, G. Lutjering (Hamburg, Germany) 181

Atomistic modelling of contribution of dislocations to crack opening displacementsA. Machova, F. Kroupa (Prague, Czech Republic) 185

Influence of grain size and heat treatment on the microstructure and mechanical properties of the nickel-base

superalloy U 720 LI

F. Torster, G. Baumeister, J. Albrecht, G. Lutjering (Hamburg, Germany), D. Helm, M.A. Daeubler (Miinchen,

Germany) 189

Statistical models for cyclic strain hardening of copper single crystalsH. Martikka (Lappeenranta, Finland), P. Kettunen (Tampere, Finland) 193

Low-cycle fatigue of a metal-matrix composite: Influence of pre-straining on the fatigue life

H. Biermann, G. Beyer, H. Mughrabi (Erlangen, Germany) 198

Nanometer sliding of [001] symmetric tilt boundaries in copper with boundary precipitatesR. Monzen, N. Takada (Kanazawa, Japan) 202

The model of formation and disintegration of vein dislocation structure

M. Saxlova, J. Kratochvil, J. Zatloukal (Prague, Czech Republic) 205

The model of PSB formation

V. Gregor, J. Kratochvil, M. Saxlova (Prague, Czech Republic) 209

Atomic structure of grown-in antiphase boundaries (APB2) in the Fe-28Al-5Cr (at.%) alloyM. Karlik (Praha, Czech Republic) 212

Shape memory effects under combined forces

P. Sittner (Prague, Czech Republic), M. Takakura, M. Tokuda (Tsu, Japan) 216

Environmental effect of fatigue crack propagation of magnesium alloyY. Kobayashi, T. Shibusawa, K. Ishikawa (Saitama, Japan) 220

Carbon-carbon compositeQ, Gu, P. Kettunen (Tampere, Finland) 223

Importance of grain boundary chemistry on the high-temperature plastic flow in oxide ceramics

T. Sakuma, Y. Ikuhara, Y. Takigawa, P. Thavorniti (Tokyo, Japan) 226

Site occupancy of alloying elements in Ti3Al compounds

D.S. Xu, Y. Song, D. Li, Z.Q. Hu (Shenyang, People's Republic of China) 230

Numerical approach to the I-S effect in ferritic heat-resisting steels

K. Hara, T. Endo (Yokohama, Japan) 234

Contents IX

Anisotropic creep behavior of a nickel-based superalloy compared with single phase nickel solid solution and / phase

single crystals

C. Knobloch (Berlin, Germany), V. SaB (Bochum, Germany), D. Sieborger, U. Glatzel (Jena, Germany) 237

Hot deformation regimes, their influence on structure and mechanical properties of silumin based composite materials and

specific features of this influence

V.G. Trifonov, I.V. Kamalova (Ufa, Russia), V.S. Romanova, V.N. Platonov (, Russia) 242

Microstructure evaluation during plastic deformation in a centrifugal spray deposition (CSD) Ti-48Al-2Mn-2Nb alloy

W. Chen, H. Xie, K. Qian (Fuzhou, People's Republic of China), H. Gu (Xi'an, People's Republic of China) ...245

Link between the individual and continuum approaches of the description of the collective behavior of dislocations

I. Groma, P. Balogh (Budapest, Hungary) 249

Evolution of precipitates in AlLiCu and AlLiCuSc alloys after age-hardening treatment

J. Dutkiewicz (Krakow, Poland), O. Simmich, R. Scholz (Halle, Germany), R. Ciach (Krakow, Poland) 253

Characterization of dislocation structures and internal stresses in Al-Mg alloys during recovery by synchrotron radiation

M. Verdier, F. Bley (Saint Martin d'Heres, France), M. Janecek (Praha, Czech Republic), F. Livet, J.P. Simon,

Y. Brechet (Saint Martin d'Heres, France) 258

Interpretation of the measurement of activation parameters in Ll2 alloysG. Saada (Chatillon, France), J. Bonneville, P. Spatig (Lausanne, Switzerland) 263

Mechanical properties of a high-strength cupronickel alloy-Bayesian neural network analysis

R.J. Grylls (Birmingham, UK) 267

Phase stability and mechanical properties of Fe3Al with addition of transition elements

Y. Nishino, S. Asano, T. Ogawa (Nagoya, Japan) 271

Stress anomaly in Ll2 alloys: the 'extended-locking/unzipping' model

F. Louchet (St. Martin d'Heres, France) 275

Damage and rupture mechanisms in a bipercolated material: the example of austenoferritic duplex steels

B. Verhaeghe, F. Louchet, Y. Brechet, J.P. Massoud (St Martin d'Heres, France) 279

Chemical aspects of brittle fracture: grain boundary segregation

P. Lejfiek (Praha, Czech Republic), S. Hofmann (Stuttgart, Germany), A. Krajnikov (Kiev, Ukraine) 283

Creep behaviour at elevated temperatures of an Al-Cu-Mg-Ag alloy

J. Wang, X. Wu, K. Xia (Parkville, Victoria, Australia) 287

Mechanical properties of Al-Li-Cu icosahedral quasicrystals

F. Semadeni, N. Baluc, J. Bonneville (Lausanne, Switzerland) 291

Order-softening of Cu-10at.%Au

E. Nembach, H. Rosner, O. Kuhlmann (Miinster, Germany) 295

Dislocation mechanisms in Al-rich Al-Li alloysH. Rosner, A. Kalogeridis, W. Liu, J. Pesicka, E. Nembach (Miinster, Germany) 298

Computer simulation of Peierls stress by using lattice statics Green's function

K. Ohsawa, E. Kuramoto (Fukuoka, Japan), T. Suzuki (Tokyo, Japan) 302

The effect of natural ageing on the evolution of yield strength during artificial ageing for Al-Mg-Si-Cu alloys

W.J. Poole (Vancouver, B.C., Canada), D.J. Lloyd (Kingston, Ont, Canada), J.D. Embury (Hamilton, Ont,

Canada) 306

The temperature and strain-rate dependence of the flow stress of icosahedral AlPdMn single-quasicrystals

D. Brunner, D. Plachke, H.D. Carstanjen (Stuttgart, Germany) 310

Chaos and the jerky flow in Al-Mg polycrystalsG. Ananthakrishna (Bangalore, India), C. Fressengeas (Metz, France), L.P. Kubin (Chatillon, France) 314

On the sweeping of dipolar loops by gliding dislocations

J. Kratochvil, M. Saxlova (Prague, Czech Republic), B. Devincre, L.P. Kubin (Chatillon, France) 318

Characteristics of damage and fracture process of carbon fiber reinforced plastic under loading-unloading test by using AE

method

S.-T. Kim, Y.-T. Lee (Kyongsan, South Korea) 322

Strengthening of Ll2-ordered mtermetallics by fine precipitation of coherent disordered phases

M. Nemoto, H. Takesue, Z. Horita (Fukuoka, Japan) 327

The X-ray characterization of the ultrafine-grained Cu processed by different methods of severe plastic deformation

I.V. Alexandrov (Ufa, Russia), K. Zhang (Shenyang, People's Republic of China), A.R. Kilmametov (Ufa, Russia),

K. Lu (Shenyang, People's Republic of China), R.Z. Valiev (Ufa, Russia) 331

Thermal structure changes in copper and nickel processed by severe plastic deformation

R.K. Islamgaliev (Ufa, Russia), F. Chmelik, R. Kuzel (Prague, Czech Republic) 335

Influence of severe plastic deformation on aging effect of Al-Zn-Mg-Cu-Zr alloy

V.V. Stolyarov, V.V. Latysh, V.A. Shundalov, D.A. Salimonenko, R.K. Islamgaliev, R.Z. Valiev (Ufa, Russia). . .339

Cavity damage accumulation and fracture in SiO,-doped zirconia during superplastic deformation

H.Y. Yasuda, K. Hiraga (Ibaraki, Japan)343

x Contents

Simulation of electron microscope dislocation images in cubic and non-cubic structures

H. Heinrich, F. Krai, G. Kostorz (Zurich, Switzerland) 347Calculation of antiphase boundary energies in intermetallics

F. Krai, P. Schwander, B. Schonfeld, G. Kostorz (Zurich, Switzerland) 351Plastic deformation of uniaxially aligned lamellar y/a2 titanium aluminides containing chromium

P. Szaszvari, D. Wilkins, H. Heinrich, G. Kostorz (Zurich, Switzerland) 354Mechanical properties and interphase boundary composition of ferritic steels strengthened by yttrium and titanium

disperse oxides

A.V. Krajnikov, A.N. Demidik (Kiev, Ukraine), H.M. Ortner (Darmstadt, Germany) 357Radiation of electromagnetic waves from edge dislocations moving in ionic crystal

K.A. Chishko, O.V. Charkina (Kharkov, Ukraine) 361

Superplasticity in the aluminium-zinc eutectoid—an early model revisited

A. Ball (Cape Town, South Africa) 365Calculation of theoretical strength of solids by linear muffin-tin orbitals (LMTO) method

P. Sandera, J. Pokluda, L.G. Wang, M. Sob (Brno, Czech Republic) 370Optical substructure and serrations in hot deformed Al-5.8 at.% Mg alloy

E. Cerri, E. Evangelista (Ancona, Italy), H.J. McQueen (Montreal, Canada) 373

Creep characterization of a duplex Ti-Al base alloy at 700 and 750°C

S. Spigarelli, L. Francesconi (Ancona, Italy), C. Guardamagna (Milano, Italy), E. Evangelista (Ancona, Italy) . . .378

The effect of mean stress on the high-temperature fatigue behaviour of SAE 1045 steel

H-J. Christ (Siegen, Germany), C.K. Wamukwamba (Lusaka, Zambia), H. Mughrabi (Erlangen, Germany) 382

Instability of cyclic stress-strain response in austenitic stainless steel single crystalsY. Kaneko, S. Hashimoto (Kyoto, Japan) 386

Microhardness of thin molybdenum films

V. Navratil, T. Sikola (Brno, Czech Republic) 390

Calculation method for the fatigue limit of parts of case hardened steels

H. Bomas, P. Mayr, M. Schleicher (Bremen, Germany) 393

On the dynamics of dislocation patterningJ.M. Salazar, O. Politano (Dijon, France), D. Walgraef (Bruxelles, Belgium) 397

Effect of geometry and volume fraction of fibers on creep in short fiber reinforced aluminum alloysJ. Phillips (Lausanne, Switzerland), M. Staubach, B. Skrotzki, G. Eggeler (Bochum, Germany) 401

Simulation of Frank-Read sources in silicon

A. Moulin, M. Condat (Orsay, France) 406

Orientation dependence of plastic deformation in NiAl single crystalsJ. Mielec, V. Novak, N. Zarubova, A. Gemperle (Praha, Czech Republic) 410

Anisotropy of transformation characteristics of Cu-base shape memory alloysV. Novak, P. Sittner, N. Zarubova (Prague, Czech Republic) 414

On the temperature dependence of slip inhomogeneity in Fe3AlA. Brinck, C. Engelke, H. Neuhauser (Braunschweig, Germany) 418

Physics of hydroxyapatite plasma coatings on TiNi shape memory materials

P. Filip (Poruba, Czech Republic), A.C. Kneissl (A 8700 Leoben, Austria), K. Mazanec (Poruba, Czech Republic) 422

The plasticity of potassium

W. Pichl, M. Krystian (Wien, Austria) 426

Isothermal plastic forming of high-carbon steel

S. Rusz (Frydek-Mistek, Czech Republic), J. Sinczak, W. Lapkowski (Krakow, Poland) 430

New microstructural concepts to optimize the high-temperature strength of /-hardened monocrystalline nickel-based

superalloysH. Mughrabi, M. Ott, U. Tetzlaff (Erlangen, Germany) 434

Defect analysis in high temperature deformed Al single crystalsM. Zehetbauer, M. Gortler, R. Krai, E. Schafler (Wien, Austria), P. Vostry, I. Stulikova (Praha, Czech Republic). 438

Work hardening by deformation induced vacancies in low temperature deformed aluminium single crystalsR. Swiatek, M. Zehetbauer (Wien, Austria), B. Mikulowski (Krakow, Al Mickiewicza, Poland) 441

Dislocation densities and internal stresses in large strain cold worked pure iron

E. Schafler, M. Zehetbauer (Wien, Austria), A. Borbely, T. Ungar (Budapest VIII, Hungary) 445

Discontinuous flow in Cu-2Be at various strain rates

Z. Trojanova (Praha, Czech Republic), V. Groger, J. Stelzhammer, G. Bischof (Vienna, Austria) 449

Hardening and strain rate sensitivity in stage IV of deformation in f.c.c. and b.c.c. metals

P. Les, H.P. Stuewe (Leoben, Austria), M. Zehetbauer (Wien, Austria) 453

Contents xi

Internal and effective stress analysis in stainless steels using the statistical approach method

F. Fardoun (Villeneuve d'Ascq, France), J. Polak (Brno, Czech Republic), S. Degallaix (Villeneuve d'Ascq, France) 456

Retardation of creep in <001>-oriented superalloy CMSX-4 single crystals by superimposed cyclic stress

P. Lukas, L. Kunz, J. Svoboda (Brno, Czech Republic) 459

Influence of martensitic transformation on the low-cycle fatigue behaviour of 316LN stainless steel at 77 KM. Botshekan, S. Degallaix, Y. Desplanques (Villeneuve d'Ascq, France) 463

Dispersion hardening of metals by nanoscaled ceramic powdersJ. Naser, W. Riehemann, H. Ferkel (Clausthal-Zellerfeld, Germany) 467

Grain stabilisation of copper with nanoscaled Al203-powderJ. Naser, H. Ferkel, W. Riehemann (Clausthal-Zellerfeld, Germany) 470

Electrodeposition of particle-strengthened nickel films

H. Ferkel, B. Muller, W. Riehemann (Clausthal-Zellerfeld, Germany) 474

Anomalous strain hardening behaviour of a supersaturated Al-Zn-Mg alloyA. Deschamps (St Martin, d'Heres, France), L. Le Sinq (Hamilton Ont., Canada), Y, Brechet (St Martin, d'Heres,

France), J.D. Embury, M. Niewczas (Hamilton Ont., Canada) 477

Influence of second-phase morphology and topology on mechanical and fracture properties of Al-Si alloysM. Lebyodkin (Chernogolovka, Russia), A. Deschamps, Y. Brechet (Saint-Martin d'Heres, France) 481

On grain boundary facetting under stress during high temperature deformation of Al and Al-Ga alloysD. Weygand, J.J. Blandin, B. Doisneau-Cottignies, Y. Brechet (St. Martin d'Heres, France) 485

Mechanical properties of aluminized CoCrAlY coatings in advanced gas turbine blades

J. Kameda, T.E. Bloomer (Ames, IA, USA), Y. Sugila, A. Ito (Nagoya, Japan), S. Sakurai (Hitachi, Japan) .... 489

Properties of alloy steel coatings oxidized during plasma sprayingK. Volenik, V. Novak, J. Dubsky, P. Chraska, K. Neufuss (Praha, Czech Republic) 493

Texture and grain-size effects on cyclic plasticity in copper and copper-zincJ.V. Carstensen, O.B. Pedersen (Roskilde, Denmark) 497

On the microstructural origin of primary creep in nickel-base superalloysM. Heilmaier (Dresden, Germany), B. Reppich (Erlangen, Germany) 501

Deformation behaviour of oxide-dispersion-strengthened silver

U. Grundmann (Dresden, Germany), M. Gerner (Freiberg, Germany), M. Heilmaier (Dresden, Germany), U. Martin

(Freiberg, Germany), L. Schultz (Dresden, Germany), H. Oettel (Freiberg, Germany) 505

The influence of texture and grain structure on the high temperature low-cycle fatigue behaviour of the ODS nickel-based

superalloy PM 1000

F.E.H. Muller, M. Heilmaier, L. Schultz (Dresden, Germany) 509

The instability of plastic deformation in as-quenched martensite

P. Wyslych (Ostrava, Poruba, Czech Republic), E. Mazancova (Ostrava, Kuncice, Czech Republic), K. Mazanec

(Ostrava, Poruba, Czech Republic) 513

FEM simulation of fatigue crack growthV. Oliva, L. Cseplo, A. Materna, L. Blahova (Prague, Czech Republic) 517

First-principles calculations of energies of impurities and doping effects at grain boundaries in nickel

L.G. Wang, C.Y. Wang (Beijing, China) 521

Influence of liquid-phase inclusion on high-temperature deformation behavior in Al-Bi alloysJ. Koike, K. Miki, K. Maruyama, H. Oikawa (Sendai, Japan) 525

Effects of grain boundary amorphous phase on high-temperature ductility in alumina polycrystalsJ. Koike, H. Oikawa, S. Wakiya, T. Takeda, K. Maruyama (Sendai, Japan) 529

Computer simulation of Portevin-LeChatelier effect based on strain softening model

R. Onodera, T. Morikawa, K. Higashida (Fukuoka, Japan) 533

Crack tip dislocations and their shielding effect in MgO thin crystalsK. Higashida, S. Okazaki, T. Takahashi (Fukuoka, Japan), N. Narita (Kitakyushu, Japan), T. Morikawa, R.

Onodera (Fukuoka, Japan) 537

Interaction of deformation and short-range order during post-deformation annealing in a-CuAl

M. Spanl, P. Rosenkranz, W. Pfeiler (Vienna, Austria) 541

Atomic structure and energetics of constricted screw dislocations in copper

T. Rasmussen (Lyngby, Roskilde, Denmark), K.W. Jacobsen (Lyngby, Denmark), T. Leffers, O.B. Pedersen

(Roskilde, Denmark) 544

Investigations on the transition from jerky to viscous glide in CuAl at elevated temperaturesA. Nortmann, H. Neuhauser (Braunschweig, Germany) 548

Plan-view observation of crack tips by focused ion beam/transmission electron microscopyH. Saka, S. Abe (Nagoya, Japan) 552

An analysis of creep damage in a welded low alloy steel rotor

J.E. Indacochea, R.A. Seshadri (Chicago, IL, USA) 555

xii Contents

Mechanical strength of GeSi solid solution

I. Yonenaga (Sendai, Japan) 559

The effect of local textures on microcrack propagation in fatigued f.c.c. metals

C. Blochwitz, R. Richter, W. Tirschler (Dresden, Germany), K. Obrtlik (Brno, Czech Republic) 563

On the evolution of disorientations in dislocation cell structures during plastic deformation

W. Pantleon (Freiberg, Germany) 567

Creep behavior and microstructural stability of Al-Cu-Mg-Ag and Al-Cu-Li-Mg-Ag alloys

S.M. Kazanjian, N. Wang, E.A. Starke, Jr. (Charlottesville, VA, USA) 571

Nucleation of microcracks in localised slip bands: A dislocation model

J. Toribio, V. Kharin (La Coruna, Spain) 575

Microstructure evolution in a pearlitic steel subjected to progressive plastic deformation

J. Toribio, E. Ovejero (La Coruna, Spain) 579

Relation between creep strength and strength for specific creep strain at temperatures up to 1200°C

V. Bina, J. Hakl (Praha, Czech Republic) 583

On the role of free surface in acoustic emission

D. Merson, M. Nadtochiy, V. Patlan (Togliatti, Russia), A. Vinogradov, K. Kitagawa (Kanazawa, Japan) 587

Plastic deformation of copper single crystals under cyclic loadingK. Kitagawa, O. Toyomoto (Kanazawa, Japan) 591

Temperature dependence of dislocation dissociation mode in Ll2 trialuminides

K. Fukunaga, K. Yamada, Y. Miura (Fukuoka, Japan), M. Kolbe (Bochum, Germany) 594

Influence of He implanted surface layer on the mechanical properties of Fe-3%Si alloy

Y. Nakamura, H. Sueyoshi (Kagoshima, Japan), M. Kutsuwada (Fukuoka, Japan) 598

Dislocation structures and flow stress

N. Hansen, X. Huang (Roskilde, Denmark) 602

Phenomenological modeling of the mechanical anisotropy in AlZnMg extruded profilesA. Fjeldly, H.J. Roven (Trondheim, Norway) 606

The composite-like structure formation of lead brass by heterogenization of deformation at high temperatureH. Dybiec, A. Korbel (Krakow, Poland) 610

Thermodynamics of substructure transformations under plastic deformation of metals and alloys

N.A. Koneva, E.V. Kozlov, L.I. Trishkina, E.E. Pekarskaya (Tomsk, Russia) 614

Magnetoplastic effect in nonmagnetic crystals

V.I. Alshits, E.V. Darinskaya, O.L. Kazakova, E.Y. Mikhina, E.A. Petrzhik (Moscow, Russia) 617

Fatigue crack initiation in fibre-metal laminate GLARE 2

A. Vasek, J. Polak, V. Kozak (Brno, Czech Republic) 621

Dislocations and extended defects in A1N deformed at high temperatures

V. Feregotto, A. George, J.-P. Michel (Nancy, France) 625

Cooperative generation of dislocation loops and the brittle-to-ductile transition

M. Khantha, D.P. Pope, V. Vitek (Philadelphia, PA, USA) 629

Damage assessment in an Al/SiC composite during monotonic tensile tests using synchrotron X-ray microtomographyJ.-Y. Buffiere, E. Maire, C. Verdu (Villeurbanne, France), P. Cloetens (Grenoble, France), M. Pateyron, G. Peix

(Villeurbanne, France), J. Baruchel (Grenoble, France) 633

A model relating grain size to the endurance limit and non-propagating crack behaviour

A. Plumtree (Waterloo, ON, Canada) 636

Generalised constitutive laws for f.c.c. single crystals

L. Tabourot (Annecy, France), M. Fivel, E. Rauch (Saint Martin d'Heres, France) 639

A model of reversible cyclic deformation of a dislocation vein structure

R. Sedla5ek (Erlangen, Germany) 643

Creep behaviour of natural rock salt and its description with the composite model

P. Weidinger (Erlangen, Germany), A. Hampel (Hannover, Germany), W. Blum (Erlangen, Germany), U. Hunsche

(Hannover, Germany) 646

Electrochemical evaluation of pinhole defects in TiN films prepared by r.f. reactive sputteringH. Uchida, S. Inoue, K. Koterazawa (Himeji, Japan) 649

The stresses and work hardening rates of mild steel with different dislocation patterns

E.F. Rauch (Saint Martin d'Heres, France) 653

Dislocation glide on non-compact crystal planes in copper

A. Orlova, K. Kuchafova, I. Podstranska, J. Bfezina (Brno, Czech Republic) 657

Peierls friction stresses and dynamic strain ageing in TiAl and Fe-30at.% Al alloysG. Molenat, A. Couret, D. Caillard (Toulouse, France) 660

Contentsxiii

Transmission electron microscopy study of precipitate morphology and precipitate overcoming processes in aluminum

alloy 6056 T6

M. Vivas, P. Lours, C. Levaillant (Albi, France), A. Couret, M.J. Casanove, A. Coujou (Toulouse, France) ....664

A study of the transmision of the deformation at the ordered domain interfaces in a TiAl lamellar alloy

S. Zghal, A. Couret (Toulouse, France)668

Microstructural study of deformation in grain boundary region during plastic deformation of polycrystalline aluminium

Q. Liu, N. Hansen (Roskilde, Denmark) 672

The importance of grain-to-grain interaction during rolling deformation of copper

T. Leffers, H. Christoffersen (Roskilde, Denmark) 676

Identification of cyclic softening and a-e hysteresis in austenitic steel with plasticity-induced martensitic transformation

J. Kaleta, G. Zietek (Wyspianskiego, Poland) 680

Anisotropy of the critical resolved shear stress of a /(47 vol.%)-hardened nickel-base superalloy and its constituent y- and

y '-single-phases

A. Nitz, E. Nembach (Miinster, Germany) 684

TEM observation and computer simulation of the interaction of superlattice dislocations with disordered y-precipitates in

Ll2-ordered y'-(Ni,Co)3(Al,Ti) intermetallics

W. Liu, T. Pretorius, H. Rosner (Miinster, Germany), D. Ronnpagel (Braunschweig, Germany), E. Nembach

(Miinster, Germany)687

In situ deformation experiments on a y/y' superalloy: Strengthening mechanisms

M. Benyoucef (Marrakech, Morocco), A. Coujou (Toulouse, France), B. Barbker (Casablanca, Morocco), N.

Clement (Toulouse, France)692

On the role of incomplete Kear-Wilsdorf locks in the yield stress anomaly of Ni3Al

D. Caillard, G. Molenat (Toulouse, France), V. Paidar (Praha, Czech Republic) 695

The self-excited wave nature of the instability and localisation of plastic deformation

L.B. Zuev, V.I. Danilov, N.V. Kartashova, S.A. Barannikova (Tomsk, Russia) 699

Influence of strain rate on the microstructure of a thermo-mechanically processed medium carbon microalloyed steel

M. Carsi (Madrid, Spain), F. Peiialba (San Sebastian, Spain), M.T. Larrea, O.A. Ruano (Madrid, Spain) 703

Effect of tempering on the microstructure and strength of martensitically hardened plain carbon steels

B. Hoffmann, O. Vohringer, E. Macherauch (Karlsruhe, Germany) 707

Cyclic deformation behaviour of quenched and tempered AISI 4140 at two-step tensile-compressive-loading

V. Schulze, K.-H. Lang, O. Vohringer, E. Macherauch (D 76128 Karlsruhe, Germany) 711

Creep-fatigue behaviour of CoCr22Ni22W14 in the temperature range 850°C< T< 1200°C

A. Mondel (Neckarsulm, Germany), K.-H. Lang, D. Lohe, E. Macherauch (Karlsruhe, Germany) 715

Thermal-mechanical and isothermal fatigue of IN 792 CC

T. Beck, G. Pitz, K.-H. Lang, D. Lohe (Karlsruhe, Germany) 719

The role of microstructure in brittle fracture behaviour of low alloy tempered bainitic steel

L. Valka, M. Holzmann, I. Dlouhy (Brno, Czech Republic) 723

Orientation dependence of surface relief topography in fatigued copper single crystals

K. Obrtlik, J. Man, J. Polak (Brno, Czech Republic) 727

Microstructural and analytical study of thermally sprayed WC-Co coatings in connection with their wear resistance

C. Verdon, A. Karimi, J.-L. Martin (Lausanne, Switzerland) 731

Dislocation and kink motion study in the bulk SiGe alloy single crystals

N.V. Abrosimov (Chernogolovka, Russia; Berlin, Germany), V. Alex (Berlin, Germany), D.V. Dyachenko-Dekov, Y.

L. Iunin, V.I. Nikitenko, V.I. Orlov (Chernogolovka, Russia), S.N. Rossolenko (Chernogolovka, Russia; Berlin,

Germany), W. Schroder (Berlin, Germany)735

Development of microstructure and texture in extruded NiAl

W. Skrotzki, M. Lemke, C.-G. Oertel, R. Tamm (Dresden, Germany) 739

Effect of deformation temperature on cyclic plasticity

C. Holste, J. Bretschneider, B. Tippelt (Dresden, Germany)743

Correlated studies of Vickers hardness and the yield stress of NaCl crystals doped with Ni2 +

,Ca2+ and Eu2+

M. Suszyhska (Wroclaw, Poland), P. Grau (Halle, Germany), M. Szmida (Wroclaw, Poland), D. Nowak-Wozny

(Halle, Germany)747

The effect of second phase on the creep deformation of 6061A1 matrix composites.

N. Matsuda, J. Akaike, K. Hongo, K. Matsuura (Yonezawa, Japan)751

Temperature dependence of dislocation microstructure in Ni3(Al,Hi)

T. Kruml, B. Viguier, J. Bonneville, J.L. Martin (Lausanne, Switzerland) 755

Interpretation of plastic deformation by means of dislocation-disclination reaction kinetics

M. Seefeldt, P. Klimanek (Freiberg, Germany)758

Effects of orientation correlations on misorientation distributions in cold-deformed aluminium

D.J. Jensen (Roskilde, Denmark)762

XIV Contents

Cyclic plasticity of recrystallized Mo at low temperaturesD.L. Chen, B. Weiss, R. Stickler (Vienna, Austria) 766

Characteristics of plastic flow in Ni3(Al,Hf) single crystalsJ. Bonneville, T. Kruml, J.-L. Martin, B. Matterstock, B. Viguier, P. Spatig (Lausanne, Switzerland) 770

Non-destructive characterisation of microstructure evolution in Mg based metal matrix composites submitted to thermal

cyclingF. Chmelik, Z. Trojanova (Praha, Czech Republic), J. Kiehn (Clausthal-Zellerfeld, Germany), P. Lukac (Praha,

Czech Republic), K. Ulrich Kainer (Clausthal-Zellerfeld, Germany) 774

Effect of lay-up sequence on mechanical properties and fracture behaviour of advanced CFRP laminate composite

Y. Tomita, K. Morioka (Osaka, Japan) 778

The dependence of the threshold stress for superplastic flow on structure

P. Malek, M. Cieslar (Prague, Czech Republic) 782

Modelling of strain hardening and its relation to the onset of Portevin-Le Chatelier effect in Al-Mg alloysR. Krai, P. Lukac (Praha, Czech Republic) 786

Inhomogeneity of mechanical properties and deformation instabilities in Al-Cu-Li-Mg alloyM. Cieslar, P. Vostry (Prague, Czech Republic), V. OcenaSek (Odolena Voda, Czech Republic), I. Stulikova (Prague,Czech Republic) 790

A theoretical model for threading dislocation reduction during selective area growth

G.E. Bcltz, M. Chang (Santa Barbara, CA, USA), M.A. Eardley (Berkeley, CA, USA), W. Pompe (Dresden,

Germany), A.E. Romanov (St. Petersburg, Russia), J.S. Speck (Santa Barbara, CA, USA) 794

Stability of microstructure in magnesium reinforced by nanoscaled alumina particles

Z. Trojanova, P. Lukac (Praha, Czech Republic), H. Ferkel, B.L. Mordike, W. Riehemann (Clausthal-Zellerfeld,

Germany) 798

Effects of high-temperature air and vacuum exposure on tensile properties and fracture of ODS alloy MA6000

Y. lino (Nagoya, Japan) 802

X-ray diffraction analysis of internal stresses in the dislocation structure of cyclically deformed nickel single crystalsM. Hecker, E. Thiele, C. Holste (Dresden, Germany) 806

The influence of temperature and strain rate on microstructural evolution of polycrystalline copper

D. Ostwaldt, P. Klimanek (Freiberg, Germany) 810

X-ray substructure analysis in cold-rolled titanium

A. Weidner, P. Klimanek (Freiberg, Germany) 814

Investigation of texture and dislocation density in rolled /? -brass by X-ray and neutron diffraction

D. Breuer, P. Klimanek (Freiberg, Germany) 818

Microprocesses of the deformation of NiAl single crystalsU. Messerschmidt, R. Haushalter, M. Barlsch (Halle/Saale, Germany) 822

Hot working and microstructure in 409 ferritic steel

E.V. Konopleva, M. Sauerborn, H.J. McQueen, N.D. Ryan (Montreal, Canada), R.G. Zaripova (Ufa, Russia)... 826

Subgrain development in hot working of Al and Al-5Mg

H.J. McQueen, I. Poschmann (Montreal, Canada) 830

Effect of strain rate on the cyclic hardening of Zircaloy-4 in the dynamic strain aging temperature range

M.G. Moscato, M. Avalos, I. Alvarez-Armas (Rosario, Argentina), C. Petersen (Karlsruhe, Germany), A.F. Armas

(Rosario, Argentina) 834

On the influence of one-point-bend impact test parameters on dynamic stress intensity factor variation

I.V. Rokach (Kielce, Poland) 838

Formation of disorientations in aluminium single crystals during hot-compression

J. Trotzschel, W. Pantleon, M. Haberjahn, P. Klimanek (Freiberg, Germany) 842

Dislocation dynamics and fracture processes in two-phase titanium aluminide alloys

U. Lorenz, F. Appel, R. Wagner (Geesthacht, Germany) 846

On the high cycle fatigue behavior of duplex stainless steels: Influence of thermal agingL. Llanes, A. Mateo (Barcelona, Spain), P. Violan, J. Mendez (Futuroscope, France), M. Anglada (Barcelona, Spain) 850

Experimental analysis of plastic deformation of steel grains: Comparison with polycrystal models predictionsC. Lineau (Noisy-le-Grand, France), C. Rey, P. Viaris de Lesegno (Villetaneuse, France) 853

Dynamic evolution of fine grained structure and superplasticity of 7075 aluminum alloyT. Sakai, X. Yang, H. Miura (Tokyo, Japan) 857

Multicracking in low cycle fatigue—a surface phenomenon?J. Stolarz (Saint-Etienne, France) 861

Photoplastic effect and Vickers microhardness in III-V and II-VI semiconductor compounds

S. Koubaiti, J.J. Couderc, C. Levade, G. Vanderschaeve (Toulouse, France) 865

Plastic deformation of a Ti-6% Al-4% V alloy with a strong transverse-type crystallographic a-texture at elevated

temperaturesJ.S. Lecomte, M.J. Philippe (Metz, France), P. Klimanek (Freiberg, Germany) 869

Contents xv

The alloying effect on the high temperature deformation of Laves phase NbCr2 intermetallic compoundM. Yoshida (Miyagi Prefecture, Japan), T. Takasugi (Sendai, Japan) 873

Dislocation reactions and microstructural instability during 1025°C shear creep testing of superalloy single crystalsM. Kolbe, K. Neuking, G. Eggeler (Bochum, Germany) 877

Influence of technological parameters of permanent mold casting and die casting on creep and strength of

Mg alloy AZ91DE.M. Gutman, Y. Unigovski, M. Levkovich (Beer-Sheva, Israel), Z. Koren (Haifa, Israel), E. Aghion, M. Dangur(Beer-Sheva, Israel) 880

Influence of cycling frequency on cyclic creep characteristics of nickel base single-crystal superalloyJ. Zrnik (Koslce, Slovakia), J,A. Wang (Chengde, China), Y. Yu (Dalian, China), L. Peijing (Beijing, China),P. Horiiak (Kosice, Slovakia) 884

Dislocation-hydrogen interactions during stress corrosion cracking in FCC metals: experiments on single crystals andnumerical simulations

D. Delafosse, J.-P. Chateau, A. Chambreuil, T. Magnin (St Etienne, France) 889The plastic deformation of 18R long range ordered Cu-Zn-Al single crystals: The temperature and strain rate dependence

of the critical stress and the influence of dynamic strain agingA. Cuniberti (Tandil, Argentina), M. Ahlers (SC de Bariloche, Argentina), R. Romero (Tandil, Argentina) 893

Simulation of X-ray diffraction-line broadening for a material containing misfitting precipitatesT.C. Bor, R. Delhez, E.J. Mittemeijer, E. Van der Giessen (AL Delft, The Netherlands) 896

Structural and strength characterization of steels subjected to bonding thermochemical processE. Melendez, I. Campos, E. Rocha, M.A. Barron (CP, Mexico) 900

A unique description of steady state deformation of Al and Al-Mg alloysG. Bermig, A. Bartels, H. Mecking (Hamburg, Germany), Y. Estrin (Nedlands WA, Australia) 904

The effect of alloying on the mechanical performance and substructure of aluminum at large strains

M. Richert, A. Korbel (Krakow, Poland) 908

Constant structure creep experiments in aluminum, AlMg and AlZn solid solutions

K. Milifika, F. Dobes, J. Slamenikova (Brno, Czech Republic) 912

Mechanism of the drop in the dependence of yield stress on neutron irradiation dose for low-alloy steel

A.V. Nikolaeva, Y.A. Nikolaev (Moscow, Russia) 915

The effects of environment and internal oxygen on fatigue crack propagation in Ti-6A1-4V

M.R. Bache, W.J. Evans (Swansea, UK), M. McElhone (Derby, UK) 918

3D simulation of a nanoindentation test at a mesoscopic scale

M. Fivel, M. Verdier, G. Canova (St Martin d'Heres, France) 923

Structure and properties of ultra-fine grained aluminium alloys produced by severe plastic deformation

M.V. Markushev (Ufa, Russia), C.C. Bampton (Thousand Oaks, CA, USA), M.Y. Murashkin (Ufa, Russia),D.A. Hardwick (Thousand Oaks, CA, USA) 927

Analysis of creep pore formation in liquid-phase sintered alumina

M. Klatt, D. Bellmann, R. Kampmann, R. Wagner (Geesthacht, Germany), C. Wolf, H. Hiibner (Hamburg,Germany) 932

Modelling of work hardeningJ. Kroc, J. Balik, P. Lukac (Prague, Czech Republic) 936

Experimental and numerical determination of the intragranular work hardening in a cold rolled multicrystalG. Mohamed (Paris, France), B. Bacroix (Villetaneuse, France), T. Ungar (Budapest VIII, POB, Hungary),J.L. Raphanel, T. Chauveau (Villetaneuse, France) 940

Plastic deformation and fracture of solids at the mesoscale level

V.E. Panin (Tomsk, Russia) 944

Solid petroleum residue as macroscopic model systems for the study of microstructure in metal materials

D.V. Kulikov, I.R. Kuzeev (Ufa, Republic of Bashkortostan, Russia) 949

Enhanced plasticity in metal matrix composites during thermal cycling under load

S. Durieux, J.Y. Buffiere, G. Lormand (Villeurbanne, France), A. Rapoport (Suresnes, France), A. Vincent

(Villeurbanne, France) 953

On the formation and motion of <010>—dislocations during high temperature low stress creep of superalloysingle crystalsA. Dlouhy (Bmo, Czech Republic), G. Eggeler (Bochum, Germany) 958

Transition from power-law to viscous creep behaviour of P-91 type heat-resistant steel

L. Kloc, V. Sklenicka (Brno, Czech Republic) 962

Cyclic shear tests on Aluminium 3004 and 5182 alloys: macroscopic behaviour and substructural developmentG.F. Dirras (Villetaneuse, France) 966

Short crack growth kinetics and fatigue life of materials

J. Polak, K. Obrtlik, A. Vasek (Brno, Czech Republic) 970

Effect of initial textures on deformation mechanisms and texture evolutions of Zra polycrystals deformed by channel-die

compression tests

H. Francillette, B. Bacroix, M. Gasperini (Villetaneuse, France), J.L. Bechade (Gif-Sur-Yvette, France) 974

XVI Contents

Some aspects of fatigue crack growth at cyclic conditions with overstressing

V. Linhart, I. Cerny (Praha, Czech Republic) 978

Internal fields and other contributions to flow stress

E.V. Kozlov, N.A. Koneva (Tomsk, Russia) 982

A comparative examination of superplastic flow and fracture in metals and ceramics

A.H. Chokshi (Bangalore, India) 986

Deformation anisotropy of /?-Sn crystals by microindenter

M. Fujiwara (Koriyama, Japan) 991

Mechanisms of primary creep in ajfi titanium alloys at lower temperatures

S. Suri, T. Neeraj, G.S. Daehn, D.-H. Hou (Columbus, OH, USA), J.M. Scott (Dayton, OH, USA), R.W. Hayes

(Northridge, CA, USA), M.J. Mills (Columbus, OH, USA) 996

Dislocation arrangements in single crystalline silicon fatigued in tension/compression

J. Degli-Esposti, A. Jacques, A. George (Nancy, France) 1000

Dissociation of a dislocation into partial dislocations bounding an unstable stacking fault

S. Takeuchi (Chiba, Japan), K. Edagawa (Tokyo, Japan) 1004

Experimental analysis of bifurcation and post bifurcation in iron single crystals

C. Rey, P. Viaris De Lesegno (Villetaneuse, France) 1007

The role of solute segregation and precipitation at dislocations to enhance continuous recrystallization

J. Li, S. Saimoto (Ontario, Canada) 1011

Dislocation-defect analysis during micro-indentation using displacement rate changes

S. Saimoto, B.J. Diak, K.R. Upadhyaya (Ontario, Canada) 1015

The determination of solute clusters in dilute aluminum alloys using strain rate sensitivity

B.J. Diak, S. Saimoto (Ontario, Canada) 1019

The rate controlling deformation mechanism in high strain rate superplasticity

R.S. Mishra, A.K. Mukherjee (California, CA, USA) 1023

The tensile creep behavior of superplastic tetragonal zirconia doped with small amounts of Si02

K. Hiraga, H.Y. Yasuda, Y. Sakka (Ibaraki, Japan) 1026

The deformation of copper single crystals at 4.2°K

M. Niewczas, Z.S. Basinski, J.D. Embury (Hamilton, Ontario, Canada) 1030

A study of dynamic embrittlement in bicrystals of Cu-7%Sn

R.C. Muthiah, J.A. Pfaendtner, C.J. McMahon, Jr., Y. Xu, J.L. Bassani (Philadelphia, PA, USA) 1033

Simulation of the long-term cyclic creep behaviour of a low alloyed ferritic chromium steel

S. Straub, P. Polcik, D. Henes, W. Blum (Erlangen, Germany) 1037

Evaluation of friction stresses in the y phase of a nickel-base superalloy: 'In situ' deformation experiments

M. Jouiad, F. Pettinari, A. Coujou, N. Clement (Toulouse, France) 1041

Evolution of microstructure and acceleration of creep rate in tempered martensitic 9Cr-W steels

F. Abe (Tsukuba, Japan)1045

The effect of carbide distributions on long-term creep rupture strength of SUS321H and SUS347H stainless steels

H. Tanaka, M. Murata, F. Abe, K. Yagi (Tsukuba, Japan) 1049

Atomic periodicity of <001> symmetric tilt boundary in molybdenum

K. Morita, H. Nakashima (Fukuoka, Japan) 1053

On the behaviour of mechanical twinning in Cu-Al single crystals

M.S. Szczerba (Krakow, Poland)1057

Fracture toughness anisotropy of PZT

J.M. Calderon-Moreno, F. Guiu, M. Meredith, M.J. Reece (London, UK) 1062

Effects of the third element on creep behavior of Al-Mg and aFe-Be solid solution alloys

H. Sato, K. Maruyama, H. Oikawa (Sendai, Japan)1067

Effect of impurities on the electronic structure of grain boundaries and intergranular cohesion in iron and tungsten

G.L. Krasko (Aberdeen, USA) 1071

Theoretical tensile stress in tungsten single crystals by full-potential first-principles calculations

M. Sob, L.G. Wang (Brno, Czech Republic), V. Vitek (Philadelphia, PA, USA) 1075

Inherent creep strength and long term creep strength properties of ferritic steels

K. Kimura, H, Kushima, F. Abe, K. Yagi (Ibaraki, Japan) 1079

The test environment effect on the mechanical properties of austenitic stainless steels

K.J. Kurzydlowski (Warsaw, Narbutta, Poland) 1083

Creep damage in welded joints of a Ni-base heat-resistant alloy Hastelloy XR

T. Tanabe, Y. Kurata, I. Mutoh, H. Tsuji, K. Hiraga, M. Shindo (Ibaraki, Japan) 1087

Vanadium-spinel composites for structural applications in hostile environments

R.B. Schwarz, C.J. Wetteland, T.D. Shen, E. Ustundag, K.E. Sickafus (Los Alamos, NM, USA) 1091

A general model for metal plasticity

K. Marthinsen, E. Nes (Trondheim, Norway) 1095

Contents xvii

Cross-slip and dislocation climb in nickel-base superalloys

A.C. Picasso, A.J. Marzocca, I. Alvarez (Pcia. de Buenos Aires, Argentina) 1099

Plastic anisotropy in b.c.c. transition metals

K. Edagawa, T. Suzuki (Tokyo, Japan), S. Takeuchi (Chiba, Japan) 1103

Deformation and fracture characteristics in TiAl at room temperature and 800°C

J.M.K. Wiezorek, M.J. Mills, H.L. Fraser (Columbus, OH, USA) 1106

Temperature dependence of superstructure and fundamental reflections: study of a creep deformed single crystal nickel

base superalloy AMIA. Royer (Grenoble, France), P. Bastie, M. Veron (Saint-Martin-d'Heres, France) 1110

Mechanical properties of Ag-Ni super-laminates produced by rollingS. Kikuchi (Shiga, Japan), H. Kuwahara, N. Mazaki, S. Urai (Kyoto, Japan), H. Miyamura (Shiga, Japan) ....

1114

Mean stress sensitivity in fatigue of a, (a 4- /?) and /? titanium alloys

J. Lindemann, L. Wagner (Cottbus, Germany) 1118

Slip behaviour and energy storage process during uniaxial tensile deformation of austenitic steel

W. Oliferuk (Warsaw, Poland), A. Korbel (Krakow, Poland), M.W. Grabski (Warsaw, Poland) 1122

Fracture mechanical evaluation of the effects of grinding residual stresses on bending strength of ceramics

R. Hessert, B. Eigenmann, O. Vohringer, D. Lohe (Karlsruhe, Germany) 1126

Author index 1131

Subject index 1135