TEM Studies on Martensitic Transformation in Fe-Cr-W-V-C Alloy

Abstract

Abstract: The martensitic transformation in Fe-Cr-W-V-C alloy has been investigated by TEM.The habit plane of martensite is near (252)_f, the austenite/martensite orientation relationship is Kurdjumov-Sachs'.In the martensite plates there are twins on (112)[ 1]_b,dislocation tangles and the lattice defects on (011)_b plane.In the austenite near the growing martensite plates,the dislocations with high density and stacking faults can be observed. The substructure of martensite may probably be the result of accommodation deformation during martensitic transformations.

Key words: martensite, habit plane, substructure, twin

WU Shanghua LIU Yumen Materials Science Institute,Zhongshan University,Guangzhou,510275,China.Department of Materials Science and Engineering,Xi'an Jiaotong University,Xi'an,710049,China.To whom correspondence should be addressed.. TEM Studies on Martensitic Transformation in Fe-Cr-W-V-C Alloy[J]. J Mater Sci Technol, 1991, 7(1): 29-34.

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TEM Studies on Martensitic Transformation in Fe-Cr-W-V-C Alloy

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