Abstract
To investigate the temperature and strain-rate dependence of flow stress and strain-hardening behaviour of austenitic stainless steel (SUS304), tension tests and creep tests were carried out in the temperature range between 750 and 1200°C under the strain-rate from 1.0×10-5 to 1.0×10-2 S-1.Some typical inelastic constitutive equations, such as the types of Perzyna and Bodner as well as the superposition model, relevant to describe the high temperature behaviour were used to simulate the test results. The material parameters of these equations were identified to simulate cyclic stress/strain hysteresis.The model of Perzyna was found to be most adequate for the simulation of material behaviour up to 1200°C.
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