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| Kinetics for static recrystallization after hot working of 0.38C-0.99Cr-0.16Mo steel | |
| 引用本文： | 李雄,张鸿冰,阮雪榆,罗中华,张艳. Kinetics for static recrystallization after hot working of 0.38C-0.99Cr-0.16Mo steel[J]. 中南工业大学学报(英文版), 2004, 11(4): 353-357. DOI: 10.1007/s11771-004-0073-7 |
| 作者姓名： | 李雄 张鸿冰 阮雪榆 罗中华 张艳 |
| 作者单位： | [1]DepartmentofPlasticityTechnology,ShanghaiJiaotongUniversity,Shanghai200030,China [2]DepartmentofMaterialsEngineering,ShanghaiInstituteofTechnology,Shanghai200233,China [3]StateKeyLaboratoryforAdvancedMetalsandMaterials, [3][UniversityofScienceandTechnologyBeijing,Beijing100083,China |
| 基金项目： | Project(5 0 2 75 0 94)supportedbytheNationalNaturalScienceFoundationofChina，project(0 3HZ0 1 )supportedbytheEmphasizedItemofDevelopmentFoundationofScienceandTechnologyofShanghaiCity，China |
| 摘 要： | The restoration mechanisms for static reerystallization of work-hardened austenite were investigated by using double-pass compression tests performed on medium-carbon steel containing chromium and molybdenum. The softening fraction was defined by 2% offset method. The results show that Avrami exponent of about 0.21 is insensitive to deformation temperature, indicating that the action of steel grade should be considered. The time of 50% recrystallization (t0.5) decreases noteworthily with the increase of deformation temperature. Apparent activation energy for static recrystallization of 195 kJ/mol, which is close to that of vanadium microalloyed steel, is obtained by calculating. The increasing trend of the driving force for recrystallization is opposite to that of the deformation temperature, which is attributed to the number of operative slip system increasing as temperature increasing. |
| 关 键 词： | 热加工 钢 部分软化 再结晶 机械还原 加工硬化 |
| 收稿时间： | 2003-12-25 |
| 修稿时间： | 2004-04-07 |
Kinetics for static recrystallization after hot working of 0.38C-0.99Cr-0.16Mo steel |
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| Li Xiong , Zhang Hong-bing , Ruan Xue-yu , Luo Zhong-hua and Zhang Yan. Kinetics for static recrystallization after hot working of 0.38C-0.99Cr-0.16Mo steel[J]. Journal of Central South University of Technology, 2004, 11(4): 353-357. DOI: 10.1007/s11771-004-0073-7 | |
| Authors: | Li Xiong Zhang Hong-bing Ruan Xue-yu Luo Zhong-hua Zhang Yan |
| Affiliation: | (1) Department of Plasticity Technology, Shanghai Jiaotong University, 200030 Shanghai, China;(2) Department of Materials Engineering, Shanghai Institute of Technology, 200233 Shanghai, China;(3) State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, 100083 Beijing, China |
| Abstract: | The restoration mechanisms for static recrystallization of work-hardened austenite were investigated by using double-pass compression tests performed on medium-carbon steel containing chromium and molybdenum. The softening fraction was defined by 2% offset method. The results show that Avrami exponent of about 0.21 is insensitive to deformation temperature, indicating that the action of steel grade should be considered. The time of 50%recrystallization (t0. 5 ) decreases noteworthily with the increase of deformation temperature. Apparent activation energy for static recrystallization of 195 kJ/mol, which is close to that of vanadium microalloyed steel, is obtained by calculating. The increasing trend of the driving force for recrystallization is opposite to that of the deformation temperature, which is attributed to the number of operative slip system increasing as temperature increasing. |
| Keywords: | hot working steel softening fraction recrystallization restoration mechanism work-hardened |
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