Critical analysis of the prediction of stress relaxation from forward creep of Type 316H austenitic stainless steel
作者： Y.Q. Wang , M.W. Spindler , C.E. Truman , D.J. Smith
DOI: 10.1016/J.MATDES.2016.01.118
关键词: Stress relaxation 、 Austenitic stainless steel 、 Strain hardening exponent 、 Creep 、 Mechanics 、 Constitutive equation 、 Hardening (metallurgy) 、 Data scatter 、 Diffusion creep 、 Metallurgy 、 Materials science
摘要: Abstract This work evaluates the effectiveness of using forward creep deformation laws to predict observed relaxation behaviour 316H austenitic stainless steel. A summary empirical methods, and stress experimental data were given. primary secondary strain rate (RCC-MR) model an average are combined with derived material constants a group tests at temperatures from 475 °C 600 °C. The RCC-MR predicted soundly underestimated all data. difference between relaxations hardening time versions equations small. Factors affecting predictions; including limitations in range, scatter, selection model, application discussed.
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