J. Mater. Sci. Technol. ›› 1991, Vol. 7 ›› Issue (1): 29-34.

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

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.   

  1. MaterialsScienceInstitute,ZhongshanUniversity,Guangzhou,510275,China.Towhomcorrespondenceshouldbeaddressed.;DepartmentofMaterialsScienceandEngineering,Xi'anJiaotongUniversity,Xi'an,710049,China.
  • 收稿日期:1991-01-28 修回日期:1991-01-28 出版日期:1991-01-28 发布日期:2009-10-10

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

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.   

  • Received:1991-01-28 Revised:1991-01-28 Online:1991-01-28 Published:2009-10-10

摘要: <正> The martensitic transformation inFe-Cr-W-V-C alloy has been investigated byTEM.The habit plane of martensite is near (252)_f,the austenite/martensite orientation relationship isKurdjumov-Sachs'.In the martensite plates thereare twins on (112)[ 1]_b,dislocation tangles and thelattice defects on (011)_b plane.In the austenite nearthe growing martensite plates,the dislocations withhigh density and stacking faults can be observed.The substructure of martensite may probably be theresult of accommodation deformation duringmartensitic transformations.

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