Selective appearance of ε-martensitic transformation and dynamic strain aging in Fe-Mn-C austenitic steels

被引：28
|
作者：
Koyama, Motomichi [1 ,2 ]
Sawaguchi, Takahiro [2 ]
Tsuzaki, Kaneaki [1 ,2 ]
机构：
[1] Univ Tsukuba, Doctoral Program Mat Sci & Engn, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
PHILOSOPHICAL MAGAZINE | 2012年 / 92卷 / 24期
基金：
日本学术振兴会;
关键词：
martensitic transformation; Fe-based alloy; planar defect; stress-strain measurement; tensile testing; dynamic strain aging; austenitic steel; solution hardening; STACKING-FAULT ENERGY; FCC->HCP TRANSFORMATION; DISLOCATION DENSITIES; PLASTIC-DEFORMATION; SINGLE-CRYSTALS; STAINLESS-STEEL; TEMPERATURE; MECHANISM; ALLOYS; NUCLEATION;
D O I：
10.1080/14786435.2012.685769
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of stress-induced epsilon-martensitic transformation on the serrated flow behavior associated with dynamic strain aging was investigated. The epsilon-martensitic transformation was controlled by changing the deformation temperature and adding Si to Fe-17Mn-xSi-0.3C alloys. The addition of Si promoted the epsilon-martensitic transformation, and suppressed the slip deformation due to solution hardening. The initiation of serrations around room temperature was delayed by the promotion of epsilon-martensitic transformation which initiated plastic deformation. The critical stress for the occurrence of serrations and the critical stress for the occurrence of slip deformation were found to have a linear relationship.
引用
收藏
页码：3051 / 3063
页数：13
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