9
Vol.44
No.9
200
1095—1098ACTAMETALLURGICASINICASept.2008pp.1095–1098
*
10476030
:2008–01–15,
:
,
,1981
:2008–04–25
,
,[3]
.
.
,
,
.
(
B
Mg
,
,
,
),
.
1096
44
22.1
1SEM
1
2
.
,
B
1
129.9315.011.951.280.190.0024–Bal.
2
30.1015.121.981.290.210.00210.008Bal.
1
1
2
SEM
Fig.1SEMmicrographsofalloy1(a–c)andalloy2(d)
(a)hot–rolled
(b)solutiontreatedat980for1h(c)agingat740for32h,lamellarηphasepre-cipitatedalonggrainboundary(GB)
(d)agingat740for32h,afewofcarbidespre-cipitatedalongGB
9
:
Fe–Ni–Cr
1097
f1
=
∆H
273+t1
−
1
1098
44
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