Optimizing strength and ductility of austenitic stainless steels through equal-channel angular pressing and adding nitrogen element

被引：28

作者：

Dong, F. Y. ^{[1
]}

Zhang, P. ^{[1
]}

Pang, J. C. ^{[1
]}

Chen, D. M. ^{[1
]}

Yang, K. ^{[1
]}

Zhang, Z. F. ^{[1
]}

机构：

[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 587卷

基金：

中国国家自然科学基金;

关键词：

Austenitic stainless steels; Equal-channel angular pressing (ECAP); Deformation twins; Strength; Ductility; CU-AL ALLOYS; STACKING-FAULT ENERGY; HIGH-PRESSURE TORSION; MICROSTRUCTURAL EVOLUTION; DEFORMATION;

D O I：

10.1016/j.msea.2013.08.056

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two austenitic stainless steels were processed by equal-channel angular pressing to systematically investigate the influences of alloying nitrogen and severe plastic deformation on the strength and ductility. With increasing the number of ECAP pass and adding nitrogen element, the density of deformation twins increased. It is shown that the two steels exhibit a similar general trend that the strength increases and the ductility decreases with increasing the deformation strain, but an enhanced strength-ductility synergy can be achieved by adding nitrogen element. (C) 2013 Published by Elsevier B.V.

引用

页码：185 / 191

页数：7

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