Dynamic strain aging and microstructural damage mechanism of austenitic stainless steel under thermomechanical fatigue in the temperature range of 250–400 °C
International Journal of Fatigue(2022)
摘要
•The increase in strain amplitude enhances the influence of phase angle on fatigue life.•The dynamic strain aging is only observed at strain amplitude of 0.6%.•Dislocation cell structures formed at high strain amplitude accelerate the softening rate and reduce fatigue life.
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关键词
Dynamic strain aging,Damage mechanism,Thermomechanical fatigue,Fracture
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