Effects of nitrogen on deformation-induced martensitic transformation in metastable austenitic Fe-18Cr-10Mn-N steels

被引：107
|
作者：
Lee, Tae-Ho [1 ]
Oh, Chang-Seok [1 ]
Kim, Sung-Joon [1 ]
机构：
[1] Korea Inst Mat Sci, Ferous Alloys Res Grp, Chang Won 641831, South Korea
来源：
SCRIPTA MATERIALIA | 2008年 / 58卷 / 02期
关键词：
deformation-induced martensitic transformation (DIMT); Austenitic steels; nitrogen; stress-strain response;
D O I：
10.1016/j.scriptamat.2007.09.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of nitrogen content on deformation-induced martensitic transformation (DIMT) in Fe-18Cr-10Mn-N alloys were investigated. During tensile deformation, the stress-strain response was changed at different transient strains (epsilon congruent to 0.19-0.22) depending on the nitrogen content. At the beginning of the deformation, a gamma -> epsilon martensitic transformation occurred, whereas the formation of alpha '-martensite was predominant after transient strain. Increasing the nitrogen content caused the transient strain for DIMT to shift to higher strain and, finally, DIMT did not occur when nitrogen content was above 0.5 wt.%. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：110 / 113
页数：4
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