Resistance and strain rate equation for fatigue-creep interaction with predominant fatigue stress of a Fe-Ni-Cr alloy

摘要

Fatigue-creep tests were performed at constant maximum stresses with varied minimum stresses under constant maximum stresses. The dropped creep stress, at which zero creep rate occurred, is called as fatigue-creep resistance. According to the principle of dropped stress creep, a series of fatigue-creep resistance was measured successfully and the relevant fatigue-creep strain rate equation expressed by fatigue-creep effective stress is established for fatigue-creep interaction with predominant fatigue.