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A new model for life prediction of GH4133 under TMF conditions 被引量:2
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作者 JianguoWang HongyingWang +2 位作者 ShipingXu LianqingWang YonglinKang 《Journal of University of Science and Technology Beijing》 CSCD 2002年第4期287-291,共5页
Thermal mechanical cyclic strain tests were carried out under in-phase andout-of-phase conditions on a Nickel-base Superalloy GH4133 in the temperature range of 571-823 degC. Based on analyzing the present models of T... Thermal mechanical cyclic strain tests were carried out under in-phase andout-of-phase conditions on a Nickel-base Superalloy GH4133 in the temperature range of 571-823 degC. Based on analyzing the present models of TMF (thermal mechanical fatigue) life prediction, a newmodel for predicting nickel-base superalloy TMF lifetime was proposed. TMF life of superalloy GH4133was calculated accurately based on the new model. Experimental TMF life has been compared with thecalculated results and all results fall in the scatter band of 1.5. The calculating results showthat the new model is not only simple, but also precise. This model will play great roles as lifeprediction of the metal materials and the engineering components subjected to non-isothermal serviceconditions. 展开更多
关键词 thermal mechanical fatigue life production Nickel-base superalloy fatigue lifetime prediction model IN-PHASE out-of-phase
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