Observation of dislocations with a Burgers vector containing a ⟨c⟩ component in martensitic hcp ε Fe-17%Mn

被引：12
作者：
Kim, Jin-Kyung [1 ]
De Cooman, Bruno C. [1 ]
机构：
[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Mat Design Lab, Pohang, South Korea
来源：
SCRIPTA MATERIALIA | 2017年 / 128卷
关键词：
Transmission electron microscopy (TEM); Dislocation; epsilon martensite; Deformation structure; MECHANISMS; ALLOYS; METALS; DEFORMATION; SLIP;
D O I：
10.1016/j.scriptamat.2016.10.016
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The occurrence of dislocations containing a < c > component and deformation bands in 8 martensite phase, is reported. The analysis of the deformation microstructure by means of transmission electron microscopy was carried out for the hcp epsilon martensite phase in Fe-16.6Mn-0.03C (wt.%). The observed accommodation of c-axis deformation is considered to be essential for the homogeneous deformation of the hcp a martensite. It is proposed that the observed dislocations containing a < c > component and deformation bands play an important role in the mechanism of stress-relaxation by enabling c-axis deformation. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：78 / 82
页数：5
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