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- W2368761745 abstract "Based on the fatigue test of steel 300 M, with the aid of non-touching thermal infrared imager, the changes of the temperature during the process of fatigue test have been observed. On the basis of first law of thermodynamics and the law of heat exchange, the G.Meneghetti's model of metal heat dissipation per unit volume has been unified. The influence of microcosmic grain size of steel 300 M steel to temperature changes has been analyzed during the process of fatigue damage under the different heat treatment conditions from microcosmic respect. Meanwhile, from macroscopic perspective, the relationship between loading, number of cycles and the temperature changes of the specimen of a fatigue test has been studied. Furthermore, a model of equivalent heat source which describes the heat sources has been established by the approximation method of taking the grain size,loading grade and fatigue life as variables. With the method of interpolation, this model can quantitatively determine temperature field on the surface of metal and the temperature of equivalent heat source. Finally, a numerical simulation has been executed to test the effect of the heat source. The model's capability of predicting the changes of temperature field during fatigue process has been verified by the experiments." @default.
- W2368761745 created "2016-06-24" @default.
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- W2368761745 date "2014-01-01" @default.
- W2368761745 modified "2023-09-27" @default.
- W2368761745 title "Analytical method of metallurgical temperature field based on heat dissipation of fatigue process" @default.
- W2368761745 hasPublicationYear "2014" @default.
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