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The warm-hot deformation behavior of CF53 steel was studied with hot compression tests at temperature of 1 123 ~1 273 K and strain rate of 0.1~20 s -1 . The activation energy for warm-hot deformation is 274.816 kJ/mol. The influences of Zener-Hollomon parameter, strain and grain size imposing on the flow stress were analyzed in the temperature range of warm-hot forging. Based on the creep theory and mathematic theory of statistics, mathematical models of flow stress were obtained. The results provide a scientific basis for controlling microstructure of forging process through Zener-Hollomon parameter. 相似文献
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