Dynamic Recrystallization Behavior of 13%Cr Martensitic Stainless Steel under Hot Working Condition

被引：1
|
作者：
G.R.Ebrahimi [1 ]
H.Keshmiri [2 ]
A.R.Maldar [2 ]
A.Momeni [3 ]
机构：
[1] Metallurgical and Materials Engineering Department,Ferdowsi University of Mashhad,Mashhad 9177948974,Iran
[2] Department of Materials Engineering,Sabzevar Tarbiat Moallem University,Sabzevar 9617976487,Iran
[3] Materials Science and Engineering Department,Hamedan University of Technology,Hamedan 6516913418,Iran
来源：
Journal of Materials Science & Technology | 2012年 / 28卷 / 05期
关键词：
Hot deformation; Dynamic recrystallization; Critical strain;
D O I：
暂无
中图分类号：
TG142.71 [不锈钢、耐酸钢];
学科分类号：
摘要：
In this study,the effect of hot deformation on martensitic stainless steel was carried out in temperatures between 950 to 1100℃and strain rates of 0.001,0.01 and 0.1 s-1.Two important dynamic recrystallization parameters,the critical strain and the point of maximum dynamic softening,were derived from strain hardening rate vs stress curves.Then the calculated parameters were used to predict the dynamic recrystallized fraction.Our results show that critical stress and strain increase with decreasing deformation temperature and increasing strain rate.The hot deformation activation energy of the steel is also investigated in the present work with 413 kJ/mol.Our experimental flow curves are in fair agreement with the kinetics of dynamic recrystallization model.
引用
收藏
页码：467 / 473
页数：7
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