Tensile Behavior of Intercritically Annealed 10 pct Mn Multi-phase Steel

被引：143
作者：
Lee, Sangwon [1 ]
De Cooman, Bruno C. [1 ]
机构：
[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Mat Design Lab, Pohang, South Korea
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
STACKING-FAULT ENERGY; MARTENSITIC-TRANSFORMATION; MECHANICAL-PROPERTIES; GRAIN-SIZE; AUSTENITE; KINETICS; MICROSTRUCTURE; SUBSTRUCTURE; STRESS;
D O I：
10.1007/s11661-013-2047-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The exceptional elongation obtained during tensile testing of intercritically annealed 10 pct Mn steel, with a two phase ferrite-austenite microstructure at room temperature, was investigated. The austenite phase exhibited deformation-twinning and strain-induced transformation to martensite. These two plasticity-enhancing mechanisms occurred in succession, resulting in a high rate of work hardening and a total elongation of 65 pct for a tensile strength of 1443 MPa. A constitutive model for the tensile behavior of the 10 pct Mn steel was developed using the Kocks-Mecking hardening model. (C) The Minerals, Metals & Materials Society and ASM International 2013
引用
收藏
页码：709 / 716
页数：8
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