Thermomechanical Fatigue Behaviour of a Nickel Base Superalloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG1989年第1期
论文作者：梁晋 R.M.Pelloux 谢锡善
文章页码：1 - 7
摘 要：<正> The isothermal low cycle fatigue （LCF）and thermomechanical fatigue （TMF） behaviourof a Ni-base superalloy was investigated. Theresults show that temperature plays an importantrole in both LCF and TMF. The alloy shows thelowest LCF fatigue resistance in the intermediatetemperature range （～760℃）. For strain-controlledTMF, in-phase （IP） cycling is more damagingthan out-phase （OP） cycling. The high tempera-ture exposure in the TMF cycling influencesthe deformation behaviour at the low temperature.LCF lives at different temperatures, and IPand OP TMF lives are successfully correlatedby using the hysteresis parameter Δσ·Δεp.
梁晋，R.M.Pelloux，谢锡善
摘 要：<正> The isothermal low cycle fatigue （LCF）and thermomechanical fatigue （TMF） behaviourof a Ni-base superalloy was investigated. Theresults show that temperature plays an importantrole in both LCF and TMF. The alloy shows thelowest LCF fatigue resistance in the intermediatetemperature range （～760℃）. For strain-controlledTMF, in-phase （IP） cycling is more damagingthan out-phase （OP） cycling. The high tempera-ture exposure in the TMF cycling influencesthe deformation behaviour at the low temperature.LCF lives at different temperatures, and IPand OP TMF lives are successfully correlatedby using the hysteresis parameter Δσ·Δεp.
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