Atomic Arrangement of Interphase Boundary between Bainite and Austenite in Fe-Si-C Alloy

被引：5
|
作者：
Ogawa, Kazuyuki [1 ]
Sawaguchi, Takahiro [1 ]
Kajiwara, Setuo [1 ]
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
MATERIALS TRANSACTIONS | 2010年 / 51卷 / 03期
关键词：
transformation; high resolution electron microscopy; atomic structure; interphase boundary; N orientational relationship; habit plane; displacive transformation; diffusional transformation; upper bainite; lower bainite; ELECTRON-MICROSCOPY; MARTENSITE; TRANSFORMATION; INTERFACE;
D O I：
10.2320/matertrans.M2009394
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Atomic arrangement of bainite/austenite interface was examined by high resolution electron microscopy in a Fe-2Si-1.4C alloy. Lattice transition region with an intermediate lattice structure between two phases, which is a characteristic feature of shear-type deformation, was not observed either between upper bainite and austenite or between lower bainite and austenite. However, high density dislocations existed inside upper and lower bainites, which may be introduced as a result of lattice invariant shear deformation. Based on these experimental :acts, the shear deformation assisted-diffusional transformation model was proposed for the bainitic transformation. [doi: 10.2320/matertransM2009394]
引用
收藏
页码：455 / 462
页数：8
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