MICROSTRUCTURE OF HEAT-RESISTANT CHROMIUM STEEL WELD METALS

被引：26
|
作者：
ANDREN, HO [1 ]
CAI, GJ [1 ]
SVENSSON, LE [1 ]
机构：
[1] CENT LABS,ESAB GRP,S-40277 GOTHENBURG,SWEDEN
来源：
APPLIED SURFACE SCIENCE | 1995年 / 87-8卷 / 1-4期
关键词：
D O I：
10.1016/0169-4332(94)00491-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microstructure of weld metals of 2.25Cr-1Mo, 5Cr-0.5Mo, 9Cr-1Mo and 12Cr-1Mo type steels was studied with electron microscopy and atom probe field ion microscopy. Many different types of carbides and nitrides precipitated during welding and post-weld heat treatment (MC, M(2)C, M(3)C, M(7)C(3), M(23)C(6), MN, M(2)N). The eutectoid decomposition of retained austenite gave large aggregates of carbides which were found to be detrimental to the impact toughness of the weld metal.
引用
收藏
页码：200 / 206
页数：7
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