Segregation-Induced Enhancement of Low-Temperature Tensile Ductility in a Cast High-Nitrogen Austenitic Stainless Steel Exhibiting Deformation-Induced α' Martensite Formation

被引：23

作者：

Mola, Javad ^{[1
]}

Wendler, Marco ^{[1
]}

Weiss, Andreas ^{[1
]}

Reichel, Benedikt ^{[2
]}

Wolf, Gotthard ^{[3
]}

De Cooman, Bruno C. ^{[4
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Iron & Steel Technol, D-09599 Freiberg, Germany

[2] Tech Univ Bergakad Freiberg, Inst Mat Sci, D-09599 Freiberg, Germany

[3] Tech Univ Bergakad Freiberg, Foundry Inst, D-09599 Freiberg, Germany

[4] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Mat Design Lab, Pohang 790784, South Korea

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2015年 / 46A卷 / 04期

关键词：

STACKING-FAULT ENERGY; TRANSFORMATION-INDUCED PLASTICITY; MECHANICAL-PROPERTIES; TWIP STEELS; MN; MICROSTRUCTURE; NI; DEPENDENCE; MANGANESE; STRENGTH;

D O I：

10.1007/s11661-015-2782-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In spite of the formation of a high fraction of deformation-induced alpha' martensite, the tensile elongation of a cast high-nitrogen austenitic stainless steel was found to enhance at lower temperatures, a behavior deviating from that exhibited by wrought and homogenized austenitic stainless steels. The observed behavior was explained by the presence of microstructural regions with different stabilities with respect to deformation-induced alpha' martensite formation caused by the segregation of alloying elements. (C) The Minerals, Metals & Materials Society and ASM International 2015

引用

页码：1450 / 1454

页数：5

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