Effect of Nitrogen on the Deformation Behaviour of High-Nitrogen Austenitic Stainless Steels

被引：17
|
作者：
Kim, Sung-Joon [1 ]
Lee, Tae-Ho [1 ]
Oh, Chang-Seok [1 ]
机构：
[1] Korea Inst Mat Sci, Dept Adv Metall Mat, Chang Won 641831, Gyeongnam, South Korea
来源：
STEEL RESEARCH INTERNATIONAL | 2009年 / 80卷 / 07期
关键词：
high nitrogen steel; nitrogen; deformation-induced martensitic transformation; deformation twinning; TRANSFORMATION; TEMPERATURE; DISLOCATION; DEPENDENCE;
D O I：
10.2374/SRI09SP033
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The deformation behaviour of high-nitrogen austenitic steels with the base composition of Fe-18Cr-10Mn containing various contents of nitrogen was investigated. Two deformation modes including deformation-induced martensitic transformation (DIMT) and deformation twinning (DT) were observed depending on the nitrogen content. In the alloys with lower nitrogen contents, gamma ->epsilon ->alpha' martensitic transformation sequentially occurred, whereas DT acted as a main deformation mode and DIMT was suppressed in the alloys with increasing nitrogen content. Both DIMT and DT showed strong crystallographic orientation dependence. The competing mechanism between them was discussed in terms of the variation of stacking fault energy with nitrogen content.
引用
收藏
页码：467 / 472
页数：6
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