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本文综述了近年来对奥氏体钢低周疲劳的研究成果。从间隙原子、温度、应变幅、层错能诸方面总结了各种因素对低周疲劳性能的影响;介绍了循环软化机制的IS结合体模型,并讨论了低周疲劳寿命。最后指出了存在的问题及我们的观点。
This paper summarizes the research results of low cycle fatigue of austenitic steel in recent years. The effects of various factors on low cycle fatigue properties are summarized from the aspects of interstitial atoms, temperature, strain amplitude and stacking faults. The IS combination model of cyclic softening mechanism is introduced and the low cycle fatigue life is discussed. Finally pointed out the existing problems and our point of view.