composition, - special metals corporation...tensile properties: extruded bar the data given in table...

NIMONIC® alloy 105 (W. Nr. 2.4634) is a wroughtnickel-cobalt-chromium-base alloy strengthened byadditions of molybdenum, aluminum and titanium. Ithas been developed for service up to 950°C, and com-bines the high strength of the age-hardening nickel-basealloys with good creep resistance.

NIMONIC alloy 105 is produced by high frequencymelting in air followed by casting in air, or, for morecritical applications the alloy is produced by vacuummelting and electroslag refining.

The alloy is used for turbine blades, discs, forgings,ring sections, bolts and fasteners.

HHeeaatt TTrreeaattmmeenntt

The heat treatment recommended is dependent on theintended service condition.

Two heat treatments are recommended as follows:

(a) 4 h/1150°C/AC+16 h/1050-1065°C/AC+16 h/850°C/AC

(b) 4 h/1125°C/AC+16 h/850°/AC

In general, heat treatment (a) is intended for optimumlong-term creep strength and ductility at operating tem-peratures in the range 850-950°C. Heat-treatment (b)may be used where long-term properties are not of para-mount importance and tensile strength, elongation andimpact strength may be enhanced for operating temper-atures up to 700°C. When applying heat-treatment (b)it is essential to ensure that cooling from 1125°C takesplace freely and is not delayed due to close packing ofcomponents.

Examples of the use of these heat treatments are asfollows:

(a) turbine blades, discs, forgings and ring sections, all of which may be produced from as-extruded, as-forged or subsequently cold worked starting stock

(b) bolts and fasteners for which extruded and cold worked bar or section is recommended as starting stock.

*Reference to the ‘balance’ of an alloy’s composition does not guaran-tee this is exclusively of the element mentioned, but that it predomi-nates and others are present only in minimal quantities.

Carbon.........................................................................0.17 maxSilicon............................................................................1.0 maxCopper...........................................................................0.2 maxIron.................................................................................1.0 maxManganese....................................................................1.0 maxChromium....................................................................14.0-15.7Titanium...........................................................................0.9-1.5Aluminum.........................................................................4.5-4.9Cobalt..........................................................................18.0-22.0Molybdenum...................................................................4.5-5.5Lead.........................................................................0.0015 maxSulfur..........................................................................0.010 maxBoron.......................................................................0.003-0.010Zirconium.....................................................................0.15 maxNickel............................................................................Balance*

CCoommppoossiittiioonn,, %%

NIM

ONIC

®al

loy

105

wwwwww..ssppeecciiaallmmeettaallss..ccoomm

The composition stated in BS HR 3 is as follows:

PPhhyyssiiccaall PPrrooppeerrttiieess

Density 8.01 g/cm³0.289 lb/in³

The exact density is dependent on compositional variationwithin the release specification.

Melting Range Liquidus temperature 1345°CSolidus temperature 1290°C

The liquidus temperature was determined by inverse cool-ing techniques and the solidus temperature obtained by met-allographic examination. The accuracy of determination was± 5°C for the liquidus temperature and +0, -10°C for thesolidus temperature.

2

TTaabbllee 11 - Specific Heat

TTaabbllee 22 - Thermal Conductivity

TTeemmppeerraattuurree rraannggee,, °°CC

20-100

20-200

20-300

20-400

20-500

20-600

20-700

20-800

20-900

20-1000

1100--66/ °°CC12.2

12.8

13.1

13.4

13.7

14.0

14.5

15.3

16.5

18.0

TTaabbllee 33 - Mean Coefficient of Linear Thermal Expansion

Extruded section subsequently cold rolled given heat treatment 4 h/1150°C/AC + 16 h/1050°C/AC + 16 h/850°C/AC.These data are average and subject to approximately ±5% variation.

TTeemmppeerraattuurree °°CC

20

100

200

300

400

500

600

700

800

900

1000

RReellaattiivvee RReessiissttaannccee

1.000

1.021

1.044

1.066

1.089

1.107

1.155

1.117

1.106

1.088

1.055

TTaabbllee 44 - Electrical Properties

Hot rolled bar subsequently cold drawn (wire) and given heat treatment 15min/1150°C/AC + 1 h/1050°C/AC + 16 h/850°C/AC.

Electrical resistivity at 20°C = 131 microhm cm

TTaabbllee 55 - Magnetic Properties

Magnetic permeability from0.02T-0.2T 1.000715

Extruded bar subsequently forged and given heat treatment 4 h/1150°C/AC+ 16 h/1050°C/AC + 16 h/850°C/AC.

NNIIMMOONNIICC®® aallllooyy 110055

TTeemmppeerraattuurree ,,°°CC

20

100

200

300

400

500

600

700

800

900

1000

TThheerrmmaall CCoonndduuccttiivviittyy,, WW//mm ••°°CC

10.89

12.10

13.57

14.99

16.33

17.67

18.63

20.56

22.23

24.03

26.21

These values have been ccaallccuullaatteedd from electrical resistance measurementson a single 3-stage heat-treated specimen using the modified Wiedemann-Franz equations.

TTeemmppeerraattuurree,, °°CC

20

100

200

300

400

500

600

700

800

900

1000

SSppeecciiffiicc HHeeaatt,, JJ//kkgg••°°CC

419

461

502

502

544

544

586

628

628

670

670

3

TTeemmppeerraattuurree °°CC

20

100

200

300

400

500

600

700

800

900

1000

EExxttrruuddeedd bbaarr

GGPPaa

188

184

179

174

168

161

154

147

139

129

110

EExxttrruuddeedd bbaarr,,ssuubbsseeqquueennttllyy

ffoorrggeedd

GGPPaa

223

219

212

206

200

193

186

178

168

155

138

EExxttrruuddeedd bbaarr,,

ssuubbsseeqquueennttllyy

ccoolldd rroolllleedd

GGPPaa

220

216

210

204

198

191

185

177

168

154

137

TTaabbllee 66 - Dynamic Young’s Modulus

Heat treatment 4 h/1150°C/AC + 16 h/1050°C/AC + 16 h/850°C/AC.

TTeennssiillee PPrrooppeerrttiieess:: EExxttrruuddeedd BBaarr

The data given in Table 7 and presented graphically in Figures 1 and 2 represent the tensile properties for extruded bar afterthe 3-stage heat treatment.

Strain rate 0.005/min to proof stress (at room temperature), 0.002/min to proof stress (at elevated temperatures) and 0.1/minthereafter.


20

100

200

300

400

500

600

700

800

900

1000

1100

00..11%% pprrooooff ssttrreessss

MMPPaa

751

739

712

712

718

711

694

706

647

373

144

26


MMPPaa

776

762

735

735

743

740

720

732

677

400

152

29

TTeennssiillee ssttrreennggtthh

MMPPaa

1140

1123

1084

1091

1101

1064

1038

1018

813

496

175

51

EElloonnggaattiioonn oonn 55..6655 √√ SSoo,, %%

22

20

21

20

24

23

25

28

25

30

42

172

RReedduuccttiioonn ooff aarreeaa,, %%

31

31

38

30

39

37

38

36

37

47

73

99

TTaabbllee 77 - Heat treatment 4 h/1150°C/AC + 16 h/1050-1065°C/AC + 16 h/850°C/AC

Average results of tests on 15 casts.


0

20

40

60

80

100

Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Red

uction of Area, %

200 100080060040000

800

400

1200

1600

20

40

60

80

100

0

120

140

160

180

200

220

Temperature, °C

0.2% Proof Stress

R. of A.

FFiigguurree 11.. Heat treatment 4h/1150°C/AC + 16h/1050-1065°C/AC + 16h/850°C/AC

98% confidence region calculated on 15 casts

ton/in² 10³ lb/in²

Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Elongation, %

200 10008006004000

0

800

400

1200

1600

Temperature, °C

FFiigguurree 22.. Heat treatment 4h/1150°C/AC + 16h/1050-1065°C/AC + 16h/850°C/AC

98% confidence region calculated on 15 casts

Tensile Strength

Elongation

4


0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220


TTeennssiillee PPrrooppeerrttiieess:: Extruded Bar Subsequently Forged

The data given in Table 8 and presented graphically in Figures 3 and 4 represent the tensile properties for extruded bar sub-sequently forged after the 3-stage heat treatment.



20

100

200

300

400

500

600

700

800

900

1000

1100


MMPPaa

796

760

745

739

732

748

735

739

680

390

152

28


MMPPaa

827

793

774

766

763

782

769

768

714

411

156

31


MMPPaa

1180

1185

1188

1162

1126

1148

1111

1075

836

491

189

56


16

21

24

20

23

23

22

26

24

28

43

132


16

24

34

24

33

31

32

33

34

38

60

99



5


200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Red

uction of Area, %

200 100080060040000

800

400

1200

1600

Temperature, °C

0.2% Proof Stress

R. of A.

FFiigguurree 33.. Heat treatment 4h/1150°C/AC + 16h/1050-1065°C/AC + 16h/850°C/AC98% confidence region calculated on 15 casts

Temperature, °F

0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220


Str

ess,

MP

a


20

100

200

300

400

500

600

700

800

900

1000


MMPPaa

795

780

755

744

744

752

743

744

681

392

168


MMPPaa

826

811

785

772

783

785

775

778

718

420

176


MMPPaa

1246

1220

1234

1239

1226

1195

1177

1092

856

533

221


25

24

26

26

27

27

25

31

25

31

48


29

30

31

31

31

31

31

31

31

39

61



Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Elongation, %

200 10008006004000

0

800

400

1200

1600

Temperature, °C


Tensile Strength

Elongation

TTeennssiillee PPrrooppeerrttiieess:: Extruded Section Subsequently Cold Rolled

The data given in Table 9 and presented graphically in Figures 5 and 6 represent the tensile properties for extruded sectionsubsequently cold rolled after the 3-stage heat treatment.


6


0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220


7


Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Red

uction of Area, %

200 100080060040000

800

400

1200

1600

Temperature, °C

0.2% Proof Stress

R. of A.


Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Elongation, %

200 100080060040000

800

400

1200

1600

Temperature, °C

FFiigguurree 66. Heat treatment 4h/1150°C/AC + 16h/1050-1065°C/AC + 16h/850°C/AC98% confidence region calculated on 15 casts

Tensile Strength

Elongation

0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220


0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220



20

100

200

300

400

500

600

700

800

900

1000


MMPPaa

791

749

731

732

740

740

726

723

678

407

155


MMPPaa

811

777

757

752

760

771

759

752

706

430

161


MMPPaa

1220

1177

1186

1183

1143

1140

1106

1060

817

496

210


25

24

27

25

28

28

26

30

27

27

46


35

39

34

36

35

35

35

33

35

35

59

TTaabbllee 1100 - Heat treatment 4 h/1125°C/AC + 16 h/850°C/AC

Test on 1 cast.

TTeennssiillee PPrrooppeerrttiieess:: Extruded Bar Subsequently Cold Stretched

The data given in Table 10 and presented graphically in Figure 7 represent the tensile properties for extruded bar subsequentlycold stretched after the 2-stage heat treatment.


Temperature, °F

200 1000800600400 1200 1400 1600 1800

20

40

60

80

0

Str

ess,

MP

a

Elongation and

Red

uction of Area, %

200 100080060040000

800

400

1200

1600

Temperature, °C

0.2% Proof Stress

R. of A.

FFiigguurree 77.. Heat treatment 4h/1125°C/AC + 16h/850°C/AC

Elongation

Tensile Strength

8


0

20

40

60

80

100

20

40

60

80

100

0

120

140

160

180

200

220


9


CCrreeeepp PPrrooppeerrttiieess

The creep characteristics for NIMONIC alloy 105 have been determined for bar after the 3-stage heat treatment.Creep-rupture properties for extruded bar subsequently forged are shown in Table 11 and Figures 8 and 9, by Larson-

Miller presentation and Graham and Walles technique.Creep-rupture properties for extruded bar subsequently cold stretched are shown in Table 12 and Figures 10 and 11.Derived total plastic strain data were created from test specimens 9.1 - 11.7 mm diameter x 76 mm gauge length (0.357 -

0.461 in diameter x 3 in gauge length) and are shown in Table 13.

CCrreeeepp--RRuuppttuurree PPrrooppeerrttiieess:: Extruded Bar Subsequently Forged

The data given in Table 11 and presented graphically in Figures 8 and 9 represent the average results of 15 casts of extrudedbar subsequently forged.


TTeesstt tteemmppeerraattuurree

°°CC

750 GW

LM

815 GW

LM

870 GW

LM

940 GW

LM

980 GW

LM

SSttrreessss ttoo pprroodduucceerruuppttuurree iinn

110000 hh

MMPPaa456

448

324

324

208

208

108

108

68

68

330000 hh

MMPPaa394

417

278

270

178

173

82

85

51

51

11000000 hh

MMPPaa340

363

232

224

131

134

(60)

(62)

31

32

33000000 hh

MMPPaa270

317

178

185

99

102

(36)

(39)

(17)

(19)

1100 000000 hh

MMPPaa(201)

(263)

(130)

(144)

(54)

(77)

(20)

(25)

—

—

3300 000000 hh

MMPPaa(154)

(224)

(77)

(116)

(31)

(54)

—

—

—

—

110000 000000 hh

MMPPaa(83)

(178)

(42)

(85)

(17)

(39)

—

—

—

—

EElloonnggaattiioonn

aatt ffrraaccttuurree

oonn 55..6655

√√ SSoo,, %%

12-18

8-21

7-17

10-21

12-22

GW=Graham and Walles analysis. LM=Larson-Miller analysis. ( ) =Outside range of determination.

10


1009080706050

40

3025

20

15

1098765

4

3

2

1.5

1

20

100

200

300

400

500

600

700

800

900

1000

1100

1200

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

2200

2300

°°FF °°CC

10-1 100 101 102 103 104 105

Time, hours

FFiigguurree 88 - Larson-Miller Parameter, T(20 + log t) x10-3; T in °K, t in hours; Heat treatment 4 h/1150°C/AC + 16 h/1050-1065°C/AC +16 h/850°C/AC

MP

a x

101

5 10 15 20 25 30 35


1MPa x 101 = 107 N/m2 ; 1 N/mm2 (1 MN/m2) = 0.1 hbar = 1.02 kgf/mm2 = 0.0647 tonf/in2

11



3

4

5

6

7

8

9

10

12

14

16

18

2022

24262830

35

40

45

50

55606570

80

90

100

110120130

140

1.5

2

2.5

3

4

5

6

7

8

9

10

12

14

16

18

20

22

24262830

35

40

45

50

5560

20

30

40

50

60

70

80

90

100

200

300

400

500

600

700

800

900

1000

10 100 1000 10 000 100 000

Time, hours

Str

ess,

MP

a

750°C

815°C

870°C

940°C

980°C


FFiigguurree 99.. Heat-treatment 4 h/1150°C/AC + 16h/1050-1065°C/AC + 16 h/850°C/AC

CCrreeeepp--RRuuppttuurree PPrrooppeerrttiieess:: Extruded Bar Subsequently Cold Stretched

The data given in Table 12 and presented graphically in Figure 10 represent the creep-rupture properties of extruded bar sub-sequently cold stretched.


TTeesstt tteemmppeerraattuurree,,°°CC

550

600

650

700

SSttrreessss ttoo pprroodduucceerruuppttuurree iinn

110000hh 330000hh 11000000hh

MMPPaa MMPPaa MMPPaa

1050 1020 989

958 911 865

819 742 680

634 572 495

EElloonnggaattiioonn aatt

ffrraaccttuurree oonn 55..6655 √√SSoo,, %%

18-21

8-17

9-13

13-19

Test on 1 cast.

12


13


1009080706050

40

3025

20

15

10987654

3

2

1.5

1

20

100

200

300

400

500

600

700

800

900

1000

1100

1200

2300

°°FF °°CC

10-1 100 101 102 103 104 105

Time, hours

FFiigguurree 1100 - Larson-Miller Parameter, T(20 + log t) x10-3; T in °K, t in hours.Heat treatment 4 h/1125°C/AC +16 h/850°C/AC

MP

a x

101

5 10 15 20 25 30 35

CCrreeeepp--RRuuppttuurree PPrrooppeerrttiieess:: Extruded Bar Subsequently Cold Stretched

2200

2100

2000

1800

1900

1700

1600

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

1MPa x 101 = 107 N/m2

1 N/mm2 (1 MN/m2) = 0.1 hbar = 1.02 kgf/mm2 = 0.0647 tonf/in2

1400 1200 1000 800 600 400 200

10 000

1000

100

10

Stress, MPa

Life

to

rup

ture

, ho

urs

FFiigguurree 1111.. Heat-treatment 4 h/1125°C/AC + 16 h/850°C/AC

}55

0°C

600°

C

650°

C

700°

C

Not

ched

550°

C

600°

C

650°

C

700°

C

14


CCrreeeepp--RRuuppttuurree PPrrooppeerrttiieess:: Extruded Bar Subsequently Cold StretchedP

lain

15


TToottaall PPllaassttiicc SSttrraaiinn DDaattaa

This data has been determined on ‘as extruded bar’ and ‘extruded section’ subsequently cold worked.

TTeesstt tteemmppeerraattuurree°°CC

650

750

815

870

980

SSttrraaiinn %%

0.1

0.2

0.5

rupture

0.1

0.2

0.5

rupture

0.1

0.2

0.5

rupture

0.1

0.2

0.5

rupture

0.1

0.2

0.5

rupture

110000 hh

MMPPaa

599

625

667

772

314

358

391

479

190

241

—

309

133

156

170

193

22

28

36

60

330000 hh

MMPPaa

541

568

602

703

275

317

352

427

139

190

229

263

105

128

142

164

—

17

26

43

11000000 hh

MMPPaa

479

510

539

618

233

275

310

368

97

134

181

218

76

97

111

130

—

—

15

31

33000000 hh

MMPPaa

422

456

486

549

196

238

273

314

74

100

136

178

54

71

83

99

—

—

—

22

1100 000000 hh

MMPPaa

(358)

394

428

471

(154)

196

232

263

57

74

93

135

37

46

54

65

—

—

—

12

3300 000000 hh

MMPPaa

—

—

(375)

410

—

(159)

(195)

(209)

—

49

57

99

—

34

(37)

40

—

—

—

—

SSttrreessss ttoo ggiivvee ttoottaall ppllaassttiicc ssttrraaiinn iinn

( ) = Outside range of determination Tests on 3 casts.

FFaattiigguuee PPrrooppeerrttiieess:: Extruded Section Subsequently Cold Rolled

Fatigue properties for extruded section subsequently coldrolled given the heat treatment 4h/1150°C/AC + 4h/1080°C/AC + 8 h/850°C/AC are given in Table 14.

GGeerrbbeerr DDiiaaggrraammss

Figures 12 to 17 illustrate the fatigue properties ofNIMONIC alloy 105 extruded section subsequently coldrolled (heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC +8 h/850°C/AC) at 20°C, 400°C, 650°C, 750°C, 870°C and980°C respectively, under conditions of uniaxial stressingwith varying mean stress. The abscissae represent themean stress and the ordinate fluctuating stress. Thus apoint on the horizontal axis represents the steady stresswhich will produce fracture in a specific time in a normalcreep rupture test. A point on the vertical axis indicates thefluctuating stress required to produce a pure fatigue failurein the same time at the particular testing frequency adopt-ed. The lines radiating from the origin correspond to stressconditions of the form P ±CP where P is the steady stressand C is a constant for any line. The full lines join pointscorresponding to lines of 50 and 500 hours for varyingstress conditions.

TTeesstt tteemmppeerraa--ttuurree°°CC

20

400

650

750

870

980

SSttrreessssffoorrmm

O ± P

P ± 2P

P ± P

P ± ½P

P ± ¼P

O ± P

P ± P

P ± ½P

P ± ¼P

P ± O

O ± P

P ± P

P ± ½P

P ± ¼P

P ± O

O ± P

P ± P

P ± ½P

P ± ¼P

P ± O

O ± P

P ± P

P ± ½P

P ± ¼P

P ± O

O ± P

P ± P

P ± ½P

P ± ¼P

P ± O

5500 hh((33 xx 110077 ccyycclleess))

MMPPaa

348

155

271

433

618

232

193

371

618

1004

271

240

417

711

834

263

232

417

502

502

240

201

240

240

240

170

84

84

84

84

550000 hh

((33 xx 110088 ccyycclleess))MMPPaa

248

116

209

356

556

232

193

371

618

1004

271

240

417

688

688

248

209

371

386

386

193

155

155

155

155

124

46

46

46

46

SSttrreessss ffoorr lliivveess ooff

TTaabbllee 1144 - Heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC + 8h/850°C/AC

16


17


0 100 200 300 400 500 600 700 800 900 1000 1100 1200

0 10 20 30 40 50 60 70800

700

600

500

400

300

200

100

0

50

40

30

20

10

0

Mean tensile stress, ton/in²

Mean tensile stress, MPa

Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem

i-range of alternating stress, ton/in²

FFiigguurree 1122.. Fatigue properties at room temperature.Heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC + 8 h/850°C/AC

50 h, 3 x 107 Cycles

500 h, 3 x 108 Cycles

O±

P

P±2P

P±P

P±½P

P±¼P

0 100 200 300 400 500 600 700 800 900 1000 1100 1200

0 10 20 30 40 50 60 70800

700

600

500

400

300

200

100

0

50

40

30

20

10

0



Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem


FFiigguurree 1133.. Fatigue properties at 400°C. Heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC + 8 h/850°C/AC


500 h, 3 x 108 Cycles

O±

P

P±P

P±½P

P±¼P

P±O


0 100 200 300 400 500 600 700 800 900 1000

0 10 20 30 40 50 60 800

700

600

500

400

300

200

100

0

50

40

30

20

10

0



Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem


FFiigguurree 1144.. Fatigue properties at 650°C.Heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC + 8 h/850°C/AC


500 h, 3 x 108 Cycles

O±

P

P±P

P±½P

P±¼P

P±O

0 100 200 300 400 500 600 700 800 900 1000

0 10 20 30 40 50 60 800

700

600

500

400

300

200

100

0

50

40

30

20

10

0



Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem


FFiigguurree 1155 .. Fatigue properties at 750°C.Heat treatment 4 h/1150°C/AC + 4 h/1080°C/AC + 8 h/850°C/AC


500 h, 3 x 108 Cycles

O±

P

P±P

P±½P

P±¼P

P±O


18


19


0 50 100 150 200 250

0 2 4 6 8 10 12 14250

200

150

100

50

0

14

12

10

8

6

4

2

0



Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem


500 h, 3 x 108 Cycles


O±

P

P±P

P±½P

P±¼P

P±O

0 50 100 150 200 250

0 2 4 6 8 10 12 14250

200

150

100

50

0



Sem

i-ra

nge

of a

ltern

atin

g st

ress

, M

Pa

Sem



500 h, 3 x 108 CyclesO±

P

P±P

P±½P

P±¼P

P±O

14

12

10

8

6

4

2

0




SSttrreessss RReellaaxxaattiioonn PPrrooppeerrttiieess

Stress relaxation data is given for extruded bar given the two recommended heat treatments. It should be noted that only verylimited data has been established, and that Tables 15 and 16 only give a general guide to the level of these properties.

SSttrreessss RReellaaxxaattiioonn PPrrooppeerrttiieess:: Extruded Bar Subsequently Hot Rolled

SSttrreessss RReellaaxxaattiioonn PPrrooppeerrttiieess:: Extruded Bar Subsequently Cold Stretched

RReessiidduuaall SSttrreessss aatt ssttaatteedd ttiimmee iinn MMPPaaTTeesstt CCoonnddiittiioonn

SSttrreessssMMPPaa

539

502

TTeemmpp..°°CC

650

700

FFiinnaall rreeaaddiinngg

TTeemmpp..°°CC

600

650

700

750

800

850

SSttrreessssMMPPaa

274

280

277

269

243

223

223322

10 000

8000

14 000

17

—

—

220011

—

—

4600

160

3

—

118866

—

—

7400

310

9

—

117700

—

—

10 500

600

20

—

115555

—

—

—

1120

40

—

113399

—

—

—

2100

74

10

112244

—

—

—

4000

130

21

110099

—

—

—

7200

250

38

9933

—

—

—

—450

70

7777

—

—

—

—

810

140

6622

—

—

—

—

1750

290

TTiimmeehh

10 000

8613

13 427

16 546

2014

698

SSttrreessssMMPPaa

232

231

161

99

60

33

TTeesstt ccoonnddiittiioonn TTiimmee ((hh)) ttoo rreeaacchh iinnddiiccaatteedd rreessiidduuaall ssttrreessss FFiinnaall RReeaaddiinngg

TTaabbllee 1155 - Heat treatment 4 h/1150°C/AC + 16 h/1050°C/AC + 16 h/850°C/AC


110000 hh

525

374

330000 hh

501

325

11000000 hh

445

283

33000000 hh

382

249

TTiimmeehh

3841

4104

SSttrreessssMMPPaa

366

238

20


00..1155%% IInniittiiaall SSttrraaiinn

00..3300%% IInniittiiaall SSttrraaiinn

21


IImmppaacctt DDaattaa::Extruded Bar Subsequently Forged

The room temperature Charpy impact strength forNIMONIC alloy 105 extruded bar subsequently forgedand given the recommended heat treatment of 4h/1150°C/AC + 16 h/1050°C/AC + 16 h/850°C/AC is ofthe order of 16 J.

Long-term embrittlement of this alloy has been inves-tigated by Charpy impact testing at room and elevatedtemperatures and the results of duplicate tests are given inTables 17 and 18 respectively.

Charpy test specimen had square cross-section of 10mm, test area of 80 mm² and V-notch angle of 45°.

IImmppaacctt DDaattaa::Extruded Section SubsequentlyCold Rolled

The room temperature Charpy impact strength ofNIMONIC alloy 105 extruded section subsequently coldrolled and given the recommended heat treatment of 4h/1150°C/AC + 16 h/1050°C/AC + 16 h/850°C/AC is ofthe order of 20 J.

Long-term embrittlement of this alloy has beeninvestigated by Charpy impact testing at room and ele-vated temperatures and the results of duplicate tests aregiven in Tables 19 and 20 respectively.


SSooaakkiinnggttiimmee,,hh

30

100

300

1000

3000

10 000

770000

JJ

11 : 11

8 : 11

8 : 8

9 : 11

8 : 5

11 : 8

775500

JJ

9 : 8

11 : 12

14 : 15

12 : 14

14 : 15

11 : 11

880000

JJ

14 : 16

16 : 16

16 : 19

15 : 14

14 : 15

9 : 11

885500

JJ

23 : 22

26 : 19

16 : 19

16 : 14

14 : 12

7 : 9

990000

JJ

22 : 22

20 : 19

12 : 11

8 : 9

8 : 8

8 : 5

SSooaakkiinngg tteemmppeerraattuurree,, °°CC

TTaabbllee 1177 - Room Temperature Impact Values


0

30

100

300

1000

3000

10 000

770000

JJ

24 : 30

16 : 19

18 : 9

8 : 11

18 : 14

15 : 15

14 : 16

775500

JJ

23 : 22

19 : 19

15 : 19

19 : 20

22 : 19

18 : 19

20 : 20

880000

JJ

23 : 22

19 : 23

23 : 23

23 : 20

20 : 20

15 : 23

18 : 19

885500

JJ

23 : 24

23 : 23

22 : 24

24 : 23

22 : 20

20 : 19

16 : 15

990000

JJ

27 : 27

24 : 26

23 : 26

22 : 26

19 : 19

22 : 20

27 : 22

SSooaakkiinngg aanndd tteesstt tteemmppeerraattuurree,, °°CC

TTaabbllee 1188 - Elevated Temperature Impact Values


30

100

300

1000

3000

10 000

770000

JJ

11 : 11

8 : 9

5 : 8

7 : 8

9 : 9

12 : 12

775500

JJ

14 : 14

15 : 12

11

12 : 12

14 : 12

15 : 14

880000

JJ

14 : 19

18 : 15

14 : 16

19 : 16

14 : 12

15 : 14

885500

JJ

20 : 20

23

16 : 18

16 : 20

12 : 12

8 : 9

990000

JJ

24 : 26

22 : 23

18 : 16

11 : 11

7 : 9

9 : 5




0

30

100

300

1000

3000

10 000

770000

JJ

33 : 30

16 : 19

20 : 18

16 : 16

16 : 15

18 : 18

20 : 20

775500

JJ

22 : 22

14 : 14

12 : 15

18 : 20

22 : 24

22 : 24

23 : 24

880000

JJ

22 : 19

19 : 26

24 : 26

26 : 26

30 : 27

24 : 24

23 : 22

885500

JJ

23 : 22

23 : 24

24 : 24

24 : 24

23 : 23

19 : 19

15 : 16

990000

JJ

28 : 30

28 : 27

30 : 30

28 : 26

22 : 24

22 : 20

18 : 18

SSooaakkiinngg aanndd tteesstt tteemmppeerraattuurree,, °°CC


660000°°CC

1.6

2.3

2.1

770000°°CC

8.7

1.1

0.5

880000°°CC

15.0

0.6

0.6

11000000°°CC

—

0.6

2.1

DDeessccaalleedd wweeiigghhtt lloossss ((mmgg//ccmm²²)) aafftteerr11000000 hhoouurrss aatt

TTeemmppeerraattuurree°°CC

890

910

990

1010

1090

1110

TTiimmee ttoo oonnsseettooff ssppaalllliinngg ((hh))aatt mmaaxx ccyyccllee

tteemmppeerraattuurree ooff°°CC

>1000

>1000

600

300

150

75

RRaattee ooffssppaalllliinngg

((mmgg//ccmm²²//hh)) aattmmaaxx ccyyccllee

tteemmppeerraattuurree ooff °°CC

—

—

0.150

0.408

0.946

1.170

WWeeiigghhtt cchhaannggeeiinn 110000 hh

((mmgg//ccmm²²)) aattmmaaxx ccyyccllee

tteemmppeerraattuurree ooff °°CC

+0.66

+1.05

-51.9

-229

-748

-955

DDeessccaalleedd wweeiigghhtt lloossss ((mmgg//ccmm²²)) aafftteerr 110000 hhoouurrss aatt

SSooaakkiinngg ttiimmee,,hh

100

300

1000

550000

JJ

31

33

24

555500

JJ

33

33

27

660000

JJ

28

21

17

665500

JJ

24

16

8



SSooaakkiinngg ttiimmee,,hh

0

100

300

1000

550000

JJ

48

45

45

44

555500

JJ

43

47

48

41

660000

JJ

47

44

37

29

665500

JJ

47

41

28

15



880000°°CC

0.11

990000°°CC

0.49

995500°°CC

0.99

11000000°°CC

1.43

11110000°°CC

6.41

DDeessccaalleedd wweeiigghhtt lloossss ((mmgg//ccmm²²)) aafftteerr 110000 hhoouurrss aatt

880000°°CC

—

990000°°CC

1.19

995500°°CC

1.59

11000000°°CC

1.61

11110000°°CC

13.3

AAttmmoosspphheerree

3% SO2-Argon

3% SO2-Air

3% SO2-5% O2-Argon

IImmppaacctt DDaattaa::Extruded Bar Subsequently ColdStretched

The room temperature Charpy impact strength ofNIMONIC alloy 105 extruded bar subsequently coldstretched and given the heat treatment of 4h/1125°C/AC+ 16h/850°C/AC is of the order of 36 J.

Long-term embrittlement of this alloy has beeninvestigated by Charpy impact testing at room and ele-vated temperatures and the results of single tests aregiven in Tables 21 and 22 respectively.


CCoorrrroossiioonn RReessiissttaannccee

22


OOxxiiddaattiioonn iinn AAiirr

CCoonnttiinnuuoouuss HHeeaattiinngg

IInntteerrmmiitttteenntt HHeeaattiinngg((CCoooolliinngg ttoo rroooomm tteemmppeerraattuurree eevveerryy 2244 hhrrss))

CCyycclliicc HHeeaattiinngg((1155 mmiinn iinn ffuurrnnaaccee,, 55 mmiinn oouuttssiiddee ffuurrnnaaccee))

RReessiissttaannccee ttoo AAttmmoosspphheerreess CCoonnttaaiinniinngg SSOO22

23


FFaabbrriiccaattiioonn

HHoott wwoorrkkiinngg

NIMONIC alloy 105 may be hot worked in the temperaturerange 1050-1200°C.

AAnnnneeaalliinngg

Interstage annealing of NIMONIC alloy 105 should be car-ried out at 1150°C followed by air cooling of fluidized bedquenching. Water quenching is not recommended as severesurface cracking may result from thermal shock.

MMaacchhiinniinngg

NIMONIC alloy 105 should be in the fully heat-treated con-dition for all machining operations. The high hardnessrange, 320-385 HV, necessitates the use of tungsten carbidetipped tools. High speed steel shock-proof tools can be usedif the cut is of an intermittent nature.

WWeellddiinngg

Fusion welding of NIMONIC alloy 105 using conventionalprocesses such as T.I.G. or M.I.G. welding is not recom-mended as microfissuring can occur both in the weld andheat affected zones. Electron beam welding has been usedsuccessfully but the danger of microfissuring still exists andwelding trials should always be carried out before theprocess is specified.

Similar difficulties can be expected with resistance spot,stitch or seam welding. Flash-butt welding is, however, quitesatisfactory and in regular use for the production of turbinerings.

HHiigghh tteemmppeerraattuurree bbrraazziinngg

High temperature brazing in vacuum, dry hydrogen or inertatmospheres is satisfactory for joining NIMONIC alloy105. However, the brazing cycle chosen should not involvetemperatures above the solution treatment temperature(1150°C) as this could adversely affect the properties of thematerial.

AAvvaaiillaabbllee PPrroodduuccttss aanndd SSppeecciiffiiccaattiioonnss

NIMONIC alloy 105 is generally available in the followingforms, subject to minimum order quantities. Other forms aresubject to enquiry.

Bar and billet for forgingRod and bar for machiningExtruded section, rectangular or profiled, for

machining, rolling and welding to rings, etc.Extruded and cold worked section

NIMONIC alloy 105 is designated W. Nr. 2.4634 and is avail-able to the following specifications:

BS. HR3 billets, bars and forgingsAICMA Ni-P61-HT billets, bars and forgingsSwedish Defence Material Administration MH.14 forged barDIN designation NiCo20Cr15MoAlTi forged barAFNOR NCKD 20ATvAECMA PrEn 2179-2181

UUnniittss ooff ssttrreessss

The primary units for property data are those of the SI sys-tem. The unit of stress is the Megapascal. Its relationshipwith other units is as follows:

1MPa = N/mm² = 1 MN/m² = 0.1 hbar = 0.102 kgf/mm² =0.0647 tonf/in².

Publication SMC-081Copyright © Special Metals Corporation, 2007 (Jan 07)

NIMONIC is a trademark of the Special Metals Corporationgroup of companies.

The data contained in this publication is for informational purposes only and may berevised at any time without prior notice. The data is believed to be accurate and reli-able, but Special Metals makes no representation or warranty of any kind (express orimplied) and assumes no liability with respect to the accuracy or completeness of theinformation contained herein. Although the data is believed to be representative of theproduct, the actual characteristics or performance of the product may vary from what isshown in this publication. Nothing contained in this publication should be construed asguaranteeing the product for a particular use or application.

wwwwww..ssppeecciiaallmmeettaallss..ccoomm

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composition, - special metals corporation...tensile properties: extruded bar the data given in table...

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