抄録
The present paper investigates the effect of phase angle on the PP and CC test lives of SUS304 steel. The PP and CC type combined push-pull and cyclic torsion tests have been conducted on thin-walled tubular specimens of SUS304 austenitic stainless steel at 1023 K in air under in-phase and 30 to 90 deg out-of-phase conditions. The experimentally obtained lives are compared with those predicted by the new parameters, that have been derived based on both the Tresca and Mises type effective inelastic strain ranges starting from the inelastic-strain-based parameter previously proposed for 90 deg out-of-phase condition.