Strain hardening behavior of nanostructured dual-phase steel processed by severe plastic deformation

被引：18
|
作者：
Ko, Young Gun [1 ]
Lee, Chul Won [2 ]
Namgung, Seung [2 ]
Shin, Dong Hyuk [2 ]
机构：
[1] Yeungnam Univ, Sch Mat Sci & Engn, Gyeongbuk 712749, Gyeongsan, South Korea
[2] Hanyang Univ, Dept Met & Mat Sci, Ansan 425791, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷
关键词：
Dual-phase steel; Nanostructure; Tensile properties; Strain hardening; METALS; ALLOY;
D O I：
10.1016/j.jallcom.2010.02.109
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The strain hardening behavior of nanostructured dual-phase steel fabricated by equal channel angular pressing together with subsequent intercritical annealing treatment was investigated. In contrast to conventional nanostructured steels that have negligible strain hardening capability in tension, the nanostructured dual-phase steel exhibited excellent strain hardenability due to the nanoscale grains of each constituent phase and their uniform distribution of them as well. The strain hardening behavior of such microstructure was explained by using modified Crussard-Jaoul analysis based on the Swift equation. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：S452 / S455
页数：4
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