ZHONG Jiaxiang QI Yan Beijing Institute of Technology
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Beijing
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ChinaZHANG Xiumu GUO Yunyi Institute of Metal Research
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Academia Sinica
,
Shenyang
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China Beijing Institute of Technology
,
Beijing 100081
,
China
金属学报(英文版)
A new “mid-relief” plate martensite was observed together with lenticular plate and thin plate martensites in Fe-29.37Ni-0.34C alloy after twice stepped cooling:-100/-120℃, -120/-140℃,-155/-165℃ and -165/-196℃,by means of colour metallography and TEM.The morphology of martensites changes with decreasing M_s temperature.The “mid-relief” plate martensite is characterized by the intensive mid-relie and the substructures of symmetric double twins or half twins and half dislocations,the formation of this martensite can be interpreted by a stress-induced co-generated mechanism.
关键词:
martensite
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