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^-l. The activation energy for warm-hot deformation is 274. 816 kJ/mol...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^-l. 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 ana- lyzed 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 microstruc- ture of forging process through Zener-Hollomon parameter.展开更多
基金The Automobile Industry Science and Tech-nology Development Fund (No3040)
文摘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^-l. 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 ana- lyzed 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 microstruc- ture of forging process through Zener-Hollomon parameter.
