GONG Hai ZHANG Weiyi Dalian Railway Institute
,
Dalian
,
ChinaZHANG Xiumu Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
Martensites distributed along the austenite grain boundaries and twin boundaries have been examined in Fe-C,Fe-Ni-C and Fe-Cr-Mn-Mo-C alloys.The martensites may nucleate preferentially and grow easily along these boundaries.In the mixed martensites,the preferentially formed one is plate or butterfly martensite
关键词:
martensite nucleation
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贡海
,
章为夷
,
张修睦
金属学报
对分布在Fe-C,Fe-Ni-C及Fe-Cr-Mn-Mo-C合金中奥氏体晶粒界及孪晶界上的马氏体进行了观察分析。结果发现,马氏体易于在奥氏体晶粒界及孪晶界优先形核,并易于沿这些界面长大;在混合马氏体组织中,其界面优先形成的是片状马氏体或蝶状马氏体。
关键词:
马氏体形核、长大
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martensite growth
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martensite morphology
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grain boundary
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twin boundary
