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论文类型： 期刊论文

发表时间： 2017-05-01

发表刊物： FUSION ENGINEERING AND DESIGN

收录刊物： SCIE、EI、Scopus

卷号： 118

页面范围： 129-134

ISSN号： 0920-3796

关键字： Modified Anand model; Irradiation hardening; Finite element method; Mod 9Cr-1Mo steel

摘要： The viscoplastic equations with a modified initial internal variable are implemented into the finite element code to investigate stress-strain response and irradiation hardening of the materials under increased temperature and at different levels of irradiated dose. We applied this model to Mod 9Cr-1Mo steel. The predicted results are validated by the experimentally measured data. Furthermore, they show good agreement with the previous data from a constitutive crystal plasticity model in account of dislocation and interstitial loops. Three previous hardening models for predicting the yield strength of the material are discussed-and compared with our simulation results. (C) 2017 Elsevier B.V. All rights reserved.