Processing a twinning-induced plasticity steel by high-pressure torsion

被引：49
作者：
Matoso, Mariana S. [2 ]
Figueiredo, Roberto B. [1 ]
Kawasaki, Megumi [3 ]
Santos, Dagoberto B. [2 ]
Langdon, Terence G. [4 ,5 ,6 ]
机构：
[1] Univ Fed Minas Gerais, Dept Mat Engn & Civil Construct, BR-31270901 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Dept Met & Mat Engn, BR-31270901 Belo Horizonte, MG, Brazil
[3] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea
[4] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton SO17 1BJ, Hants, England
[5] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[6] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 7-8期
基金：
欧洲研究理事会;
关键词：
Hardness; High-pressure torsion; Homogeneity; Twinning; TWIP steel; MANGANESE AUSTENITIC STEEL; DEFORMATION-BEHAVIOR; TENSILE DEFORMATION; GRAIN-REFINEMENT; TEMPERATURE; MICROSTRUCTURE; NANOSTRUCTURE; HOMOGENEITY; EVOLUTION; EXAMINE;
D O I：
10.1016/j.scriptamat.2012.07.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A high-manganese steel was processed by high-pressure torsion for up to 10 turns under a pressure of 6.0 GPa. The results show the development of a reasonably homogeneous structure with a peak hardness of H nu approximate to 450. There is extensive twinning in the early stages of deformation. An analysis of the evolution of strength with imposed strain suggests that strain hardening due to twinning is exhausted in the early stages of processing. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：649 / 652
页数：4
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