Variable Temperature Creep and Creep Recovery of 304 Stainless Steel

Abstract

Creep and creep recovery data are reported for pure tension of 304 stainless steel under variable temperature between 593°C and 649°C. Varying temperature experiments involved multiple steps of abrupt temperature increase and decrease at a constant stress of 86.2 MPa (12.5 ksi). A temperature-compensated time proposed by Sherby and Dorn was employed to represent the effect of temperature. The temperature history dependent theory combined with the modified superposition principle was used to predict the variable temperature creep and creep recovery from data under constant temperature. The test data were predicted reasonably well by the theory.