Effect of dynamic strain aging on isotropic hardening in low cycle fatigue for carbon manganese steel

被引：21

作者：

Huang, Zhi Yong ^{[1
]}

Chaboche, Jean-Louis ^{[2
]}

Wang, Qing Yuan ^{[1
]}

Wagner, Daniele ^{[3
]}

Bathias, Claude ^{[3
]}

机构：

[1] Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu 610064, Peoples R China

[2] Off Natl Etud & Rech Aerosp, DMSM, F-92320 Chatillon, France

[3] Univ ParisOuest Nanterre La Def, Paris, France

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 589卷

关键词：

LCF; DSA; High temperature; C-Mn steel; CONSTITUTIVE MODEL; BEHAVIOR; DEFORMATION; SENSITIVITY;

D O I：

10.1016/j.msea.2013.09.058

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Carbon-manganese steel A48 (French standard) is used in steam generator pipes of nuclear reactor pressure vessels at high temperatures (about 200 degrees C). The steel is sensitive to dynamic strain aging in monotonic tensile test and low cycle fatigue test at certain temperature range and strain rate. Its isotropic hardening behavior observed from experiments has a hardening, softening and hardening evolution with the effect of dynamic strain aging. The isotropic hardening model is improved by coupling the dislocation and dynamic strain aging theory to describe the behavior of A48 at 200 degrees C. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：34 / 40

页数：7

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