Analysis of the Tensile Behavior of 12 pct Mn Multi-phase (α plus γ) TWIP plus TRIP Steel by Neutron Diffraction

被引：31
|
作者：
Lee, Sangwon [1 ,2 ]
Woo, Wanchuck [3 ]
de Cooman, Bruno C. [2 ]
机构：
[1] Korea Inst Mat Sci, Chang Won, South Korea
[2] Pohang Univ Sci & Technol POSTECH, Grad Inst Ferrous Technol, Mat Design Lab, Pohang, South Korea
[3] Korea Atom Energy Res Inst, Div Neutron Sci, Daejeon, South Korea
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2016年 / 47A卷 / 05期
关键词：
STACKING-FAULT ENERGY; GRAIN-SIZE; MARTENSITIC-TRANSFORMATION; RETAINED AUSTENITE; PLASTICITY; DEFORMATION; MECHANISMS; ORIENTATION; FERRITE; STRESS;
D O I：
10.1007/s11661-016-3407-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The tensile behavior of intercritically annealed Fe-12 pctMn-0.3 pctC-2 pctAl and Fe-12 pct Mn-0.3 pctC-3 pctAl steel was studied by means of in situ neutron diffraction and microstructural analysis. The in situ neutron diffraction measurements showed that the ferrite had a much higher yield strength and lower work hardening rate as compared to the austenite. The strain hardening of the austenite was controlled by deformation twinning and strain-induced transformation, occurring in succession. This TWIP + TRIP effect acted as an effective plasticity-enhancing mechanism which increased the work hardening rate. (C) The Minerals, Metals & Materials Society and ASM International 2016
引用
收藏
页码：2125 / 2140
页数：16
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