抄録
Using notched specimens of austenitic steel SUS310S, creep rupture tests are conducted in tension, torsion and combined tension-torsion stress states at 700℃. The creep fractures especially the initiation and growth behaviors of creep voids in the specimens are investigated and discussed. It is suggested that the von Mises effective stress and the mean stress promote the initiation and growth of creep voids, respectively.
