Transformation mechanism of α′-martensite in an austenitic Fe-Mn-C-N alloy

被引：168
作者：
Bracke, L.
Kestens, L.
Penning, J.
机构：
[1] Univ Ghent, Fac Engn, Dept Met & Mat Sci, B-9052 Ghent, Belgium
[2] Delft Univ Technol, Dept Met & Mat Engn, NL-2628 CD Delft, Netherlands
来源：
SCRIPTA MATERIALIA | 2007年 / 57卷 / 05期
关键词：
austenite; deformation induced martensite; Olson-Cohen model;
D O I：
10.1016/j.scriptamat.2007.05.003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The strain-induced transformation from austenite (fcc) into alpha'-martensite (bcc) in an Fe-18Mn-0.25C-0.084N austenitic alloy has been studied through transmission electron microscopy. It was found that alpha'-martensite nucleated in the intersection of two epsilon-martensite laths. Detailed observations of the crystal structures in this zone allowed the incorporation of the relaxation of the transformation strains by the introduction of retransformation partial dislocations. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：385 / 388
页数：4
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