| Investigation on Zener-Hollomon Parameter in the Warm-Hot Deformation Behavior of CF53 |
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| 作者姓名： | 杨慧 李振红 张质良 |
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| 作者单位： | Dept. of Plasticity Technology Shanghai Jiaotong Univ.，Dept. of Plasticity Technology Shanghai Jiaotong Univ.，Dept. of Plasticity Technology Shanghai Jiaotong Univ.，Shanghai 200030 China，Shanghai 200030 China，Shanghai 200030 China |
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| 基金项目： | The Automobile Industry Science and Tech-nology Development Fund (No3040) |
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| 摘 要： | 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.
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| 关 键 词： | 锻造技术 热变形 CF53 颗粒型号 |
Investigation on Zener-Hollomon Parameter in the Warm-Hot Deformation Behavior of CF53 |
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| YANG Hui,LI Zhen-hong,ZHANG Zhi-liang.Investigation on Zener-Hollomon Parameter in the Warm-Hot Deformation Behavior of CF53[J].Journal of Shanghai Jiaotong university,2007,12(3):352-358. |
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| Authors: | YANG Hui LI Zhen-hong ZHANG Zhi-liang |
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| Abstract: | 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. |
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| Keywords: | Zener-Hollomon parameter warm-hot deformation CF53 grain size |
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