Effect of ultrafine grain on tensile behaviour and corrosion resistance of the duplex stainless steel

被引：98
作者：
Lv Jinlong [1 ,2 ]
Liang Tongxiang [1 ,2 ]
Wang Chen [1 ,2 ]
Dong Limin [1 ,2 ]
机构：
[1] Tsinghua Univ, Beijing Key Lab Fine Ceram, Inst Nucl & New Energy Technol, Zhongguancun St, Beijing 100084, Peoples R China
[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2016年 / 62卷
基金：
中国国家自然科学基金;
关键词：
Duplex stainless steel; Grain refinement; Tensile behaviour; Corrosion; Passive film; ELECTROCHEMICAL-BEHAVIOR; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; MICROSTRUCTURE; AUSTENITE; PHASES;
D O I：
10.1016/j.msec.2016.02.008
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
The ultrafine grained 2205 duplex stainless steel was obtained by cold rolling and annealing. The tensile properties were investigated at room temperature. Comparing with coarse grained stainless steel, ultrafine grained sample showed higher strength and plasticity. In addition, grain size changed deformation orientation. The strain induced alpha'-martensite was observed in coarse grained 2205 duplex stainless steel with large strain. However, the grain refinement inhibited the transformation of alpha'-martensite;nevertheless, more deformation twins improved the strength and plasticity of ultrafine grained 2205 duplex stainless steel. In addition, the grain refinement improved corrosion resistance of the 2205 duplex stainless steel in sodium chloride solution. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：558 / 563
页数：6
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