Influence of annealing temperature on mechanical properties and microstructures of a high manganese austenitic steel

被引：61
作者：
Yuan, Xiaoyun [1 ]
Chen, Liqing [1 ]
Zhao, Yang [2 ]
Di, Hongshuang [1 ]
Zhu, Fuxian [1 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2015年 / 217卷
基金：
国家高技术研究发展计划(863计划);
关键词：
High manganese austenitic steel; Annealing temperature; Microstructure; Mechanical property; PHASE-TRANSFORMATION; TRIP/TWIP STEELS; FCC ALLOYS; BEHAVIOR;
D O I：
10.1016/j.jmatprotec.2014.11.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By using scanning electron microscope (SEM) equipped with electron back-scattered diffraction (EBSD), transmission electron microscope (TEM) and room temperature tensile deformation test, the mechanical properties and microstructure evolution of a high manganese austenitic twinning-induced plasticity (TWIP) steel 25Mn-3Cr-3Al-0.3C-0.01N were investigated for the cold-rolled sheets annealed at different temperatures. The results show that annealing temperature has a tremendous effect on grain size and mechanical properties of the cold rolled high manganese austenitic TWIP steel. The features of the annealed grain microstructures of this steel can be characterized by coincidence site lattice (CSL) Sigma 3 at grain boundary. The occurrence frequency of Sigma 3 grain boundary and deformation twins in this steel has a close relation to annealing temperature. The microstructure evolution at different strain levels was finally described for the annealed and tensile deformed high manganese austenitic steel. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：278 / 285
页数：8
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