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TRANSCRIPT
1
P. -2.3-1
2
P. -2.4,5
2007-2008
�
�
3
P. -2.3-6~9
Mg
�AlMg
� Cu Ni
�
4
P. -2.3-9~16
2009
LCA
5
P. -2.3-2
1 -1
1 -2
2 -1
2 -2
-3
6
1 -2
P. -2.3-2
0.1
0.64
0.64
7
P. -2.3-69
8
1
•0.1%
•
-
•Mg Al
Al90
• Cu Ni
Mg
Mg
9
1 -2 P. -2.3-17~28
Mg
3
1 -2 P. -2.3-18
ZK-70
AZ31
AZ91
AZ31
Ca Mg AZX-911
AZX-911
1 -2 P. -2.3-18 20
11
Ca Mg
XRF Ti 59.73% Zn 27.82% Mn 5.50% Al 3.38% Si 2.80% P 0.46%
XRF Mg 83.86% Al 13.82% Zn 1.73% Mn 0.55% S 0.039%
AZ91D 6.5 17 45 4mmANC
T 2535μ
2 -1
( wt%)
3 Mg Al Al90
3 Mg50 XRF
AM60
1 -2 P. -2.3-22~24
Y2
X1
X2
X3
X14
Y1
Y3
22 12 2
AM60
Al 8.07 6.11 5.5-6.5
Zn 0.423 0.023 0.2
Mn 0.241 0.329 0.24-0.60
Si 0.001 0.001 0.1
Cu 0.004 0.001 0.01
Ni 0.001 0.001 0.001
Fe 0.008 0.005 0.005
1. Mg Mg
0.1%
2. 3.
1.
Mg Al Al90
2. Cu Ni
1 -2 P. -2.3-28~29
13
Mg
Mg
→
Mg
14
1 -3 P. -2.3-30~40
1 -3 P. -2.3-31
Mg
Mg 99.5
74�m 90 110g/m3
125�m 500g/m3
0100200300400500600700800900
1000
0-20 20-37 37-45 45-74 74-105 105-125 125-149 149-177Particle size (µm)
Min
imum
expl
osiv
e con
cent
ratio
n (g
/m3 )
Mg
Mg
0
50
100
150
200
250
0-20 20-37 37-45 45-74 74-105 105-125 125-149 149-177
Particle size (µm)
Min
imum
igni
tion
ener
gy (m
J)
JISZ8818
4mJ
2
45�m 4 10mJ
Mg 99.5
Ca 1% Mg (AZX911)
Mg
Mg -45�m
AZX911 (d50 46.5�m)
9 mJ 300 mJ
No explosion
Over 9 J
Min
imum
Igni
tion
Ene
rgy
(MIE
) J
Air flow velocity m/s
4m/s
JISZ8818
1 -3 P. -2.3-33~34
16
: 100 μm
90 g/m3
: 7%
: 4 m/s
4 mJ
: 500
Kst : 321 [ 102 kPa m/s]
6.5 109 [Ω m] 8.3 1011 [Ω]
1 -3 P. -2.3-40
17
Mg 1. Mg Mg
2.
3.
Mg
1 -3 P. -2.3-40~41
18
19
1
-
MgMg
3 Mg Al Al Mg
- Mg
Mg
P. -2.3-28~29, 40~41
20
1
-
3
-
P. -2.3-67
21
2
-(2)-
2
22
40mm40mm
P. -2.3-42 2
23
2 -1
24
AZ AZ31
SHS AZ91 AZX911 AZ31 AZ91 SHS
AZ91 AZ31
P. -2.3-42~45
300 350MPa
350 15
SHS
AZ31
AZ31
40mm40mm
AZ31
2 -1 P. -2.3-43
25
σ σ ε
ρ
ρ
AZ31 0.64
2 -1 P. -2.3-44~45
26
Mg
AZ31
AZ31
200 250 300 h=2mm r=1 mm
60um
60um
27
2 -1 P. -2.3-46~47
AZ31
300
70
AZ31
AZ91 320
h=2mm r=1mm
AZX911 320
h=2mm r=1mm
AZ91,AZX911
2 -1 P. -2.3-48,51
28
200 250 300 ( h 4mm r 3mm
AZ91,AZX911
AZ91
-(2)-
2 -2
29
�m
400
2 -2 P. -2.3-53 55
30
362MPa
0.2 145MPa 19%
446MPa
0.2 154MPa 20%
EPMA
2 -2 P. -2.3-55
31
(a) (b)
(a) (b)(a) (b)
2 -2 P. -2.3-56 58
32
mm/year mm/year
(a)(b)
(c)
2 -2 P. -2.3-59 60
33
2
(a)0 (b)45 (c)90
(a) (b)
(c)
TD
2 -2 P. -2.3-62 64
34
-(2)-1 1. AZ31
AZ31
2. AZ91HOMO AZX911HOMO
3. AZ31
4. AZ91D
2 P. -2.3-52
35
-
1. 1 2μm
2. 2
3.
2 P. -2.3-65 66
36
37
-(2)
-(2)-1
LCA
-(2)-
2 P. -2.3-52 65
-(2)
2
Mg
38
P. -2.3-67 68
22 2010 6 3
P. -1
39
40
1 Mg 300kg/h
A 116.2kw ¥12/kw ¥1,394.4 0 ¥60/m3 ¥0
500kg ¥0.2/kg ¥100 ¥1,494.4
B 15.7kw ¥12/kw ¥188.4 18m3 ¥60/m3 ¥1,080
40kg ¥0.2/kg ¥8 ¥1,276.4
1 -2 P. -2.3-20
41
2
A ¥5.0/kg B ¥4.3/kg ¥45 60/kg
B A
1/10
A
B
Mg (10mm x 10mm x 2mm): 10g Cu (5mm x 2mm x 0.1mm) : 1g 1M (NH4)2SO4-5M NH3 0.5L 4
Cu(II)Cu
1 -2
42
Cu Ni
Mg Cu II M) Mg (%) Cu %
AZ31 0.1 0.1 90
AZ31 0.5 0.1 100
AZ91 0.1 0.1 93
AZ91 0.5 0.1 100
Ni pH9 Ni
Cu Ni (SUS304) Mg
pH
+
+ Cu(II)
+
+Cu(II) +
Cu
P. -2.3-25~28
Dis
solu
tion
rate
(10-
2 g/
cm2
/ h)
7 9 110
4
2
pH
Temp.: 60
C(Cu2+)/ mol L-1
00.020.05
Dis
solu
tion
rate
(10-
2 g/
cm2
/ h)
7 9 110
4
2
pH
Temp.: 60
C(Cu2+)/ mol L-1
00.020.05
� ��tVdtIE
0
J
1 -3 P. -2.3-34~36
V
I
I
V
J
50 mm
1500 mm
43 Mg
Mg
Mg
Mg
3000
Mg Mg
2020
Mg
Mg Mg 44
P. -2.3-68