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NUCLEATION AND GROWTH OF FERROUS MARTENSITES ALONG BOUNDARIES

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 , null , null , null , null , null

铁基马氏体的界面形核与长大

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 , martensite growth , martensite morphology , grain boundary , twin boundary

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