A low cycle fatigue model for low carbon manganese steel including the effect of dynamic strain aging

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:654

Article

Huang, Zhi Yong¹  Wagner, Daniele²  Wang, Qing Yuan¹  Khan, Muhammad Kashif¹  Chaboche, Jean-Louis³ 

[1] Sichuan Univ, Sch Aeronaut & Astronaut, 29 Jiuyanqiao Wangjiang Rd, Chengdu 610064, Peoples R China

[2] Univ Paris Ouest Nanterre La Def, Nanterre, France

[3] Off Natl Etud & Rech Aerosp, DMSM, 29 Ave Div Lecerc, F-92320 Chatillon, France

关键词: Carbon manganese steel;    Cyclic hardening;    Dynamic strain aging;    Low cycle fatigue;   

DOI  :  10.1016/j.msea.2015.12.022

来源: Elsevier

【 摘 要 】

Carbon-manganese steel A48 (French standards) is used in steam generator pipes of the nuclear power plant where it is subjected to the cyclic thermal load. The Dynamic Strain Aging (DSA) influences the mechanical behavior of the steel in low cycle fatigue (LCF) at favorable temperature and strain rate. The peak stress of A48 steel experiences hardening-softening-hardening (HSH) evolution at 200 degrees C and 0.4% s(-1) strain rate in fatigue loading. In this study, isotropic and kinematic hardening rules with DSA effect have been modified. The HSH evolution of cyclic stress associated with cumulative plastic deformation has also been estimated. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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