| A new model for life prediction of GH4133 under TMF conditions |
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| 作者单位： | Jianguo Wang1)，Hongying Wang1)，Shiping Xu1)，Lianqing Wang1)，and Yonglin Kang2)1) State Key Laboratory for Advanced Metals and Materials，University of Science and Technology Beijing，Beijing 100083，China2) Materials Science and Engineering School，Un |
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| 摘 要： | Thermal mechanical cyclic strain tests were carried out under in-phase and out-of-phase conditions on a Nickel-base Super-alloy GH4133 in the temperature range of 571-823℃. Based on analyzing the present models of TMF (thermal mechanical fatigue) life prediction, a new model for predicting nickel-base superalloy TMF lifetime was proposed. TMF life of superalloy GH 4133 was calculated accurately based on the new model. Experimental TMF life has been compared with the calculated results and all results fall in the scatter band of 1.5. The calculating results show that the new model is not only simple, but also precise. This model will play great roles in life prediction of the metal materials and the engineering components subjected to non-isothermal service conditions.
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A new model for the life prediction of GH4133 under TMF conditions |
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| Authors: | Jianguo WANG Hongying Wang Shiping Xu Lianqing Wang Yonglin Kang |
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| Abstract: | Thermal mechanical cyclic strain tests were carried out under in-phase and out-of-phase conditions on a Nickel-base Superalloy GH4133 in the temperature range of 571-823℃. Based on analyzing the present models of TMF (thermal mechanical fatigue) life prediction, a new model for predicting nickel-base superalloy TMF lifetime was proposed.TMF life of superalloy GH4133 was calculated accurately based on the new model. Experimental TMF life has been compared with the calculatedresults and all results fall in the scatter band of 1.5. The calculating results show that the new model is not only simple, but also precise. This model will play great roles in life prediction of the metal materials and the engineering components subjected to non-isothermal service conditions. |
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| Keywords: | thermal mechanical fatigue life production Nickel-base superalloy fatigue lifetime prediction model in-phase out-of-phase |
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