| Thermomechanical Fatigue Behaviour of a Nickel Base Superalloy |
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| 作者姓名： | 梁晋 R.M.Pelloux 谢锡善 |
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| 作者单位： | Univiersity of Science and Technology Beijing formely Beijing Univiersity of Iron and Steel Technology 100083 China，MIT Cambridge MA 02139 USA.，Univiersity of Science and Technology Beijing (formely Beijing Univiersity of Iron and Steel Technoloqy) 100083 China. |
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| 摘 要： | 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·Δε_p.
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| 收稿时间： | 1989-01-28 |
Thermomechanical Fatigue Behaviour of a Nickel Base Superalloy |
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| LIANG Jin R. M. Pelloux XIE Xishan Univiersity of Science and Technology Beijing,,China. MIT,Cambridge MA USA..Thermomechanical Fatigue Behaviour of a Nickel Base Superalloy[J].Journal of Materials Science & Technology,1989,5(1):1-7. |
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| Authors: | LIANG Jin R M Pelloux XIE Xishan Univiersity of Science and Technology Beijing China MIT Cambridge MA USA |
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| Affiliation: | formely Beijing Univiersity of Iron and Steel Technology |
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| Abstract: | The isothermal low cycle fatigue (LCF) and thermomechanical fatigue (TMF) behaviour of a Ni-base superalloy was investigated. The results show that temperature plays an important role in both LCF and TMF. The alloy shows the lowest LCF fatigue resistance in the intermediate temperature range (～760℃). For strain-controlled TMF, in-phase (IP) cycling is more damaging than out-phase (OP) cycling. The high tempera- ture exposure in the TMF cycling influences the deformation behaviour at the low temperature. LCF lives at different temperatures, and IP and OP TMF lives are successfully correlated by using the hysteresis parameter Δσ·Δε_p. |
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| Keywords: | Ni-base superalloy low cycle fatigue thermomechanical fatigue |
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