| Q235钢滚珠滚压表面变形分布规律及微观组织演变 |
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| 引用本文： | 任涛林,谢滨涛,徐文臣,单德彬,吕炎.Q235钢滚珠滚压表面变形分布规律及微观组织演变[J].锻压技术,2010,35(1). |
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| 作者姓名： | 任涛林 谢滨涛 徐文臣 单德彬 吕炎 |
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| 作者单位： | 1. 哈尔滨工业大学材料学院,黑龙江,哈尔滨,150001
2. 一汽轿车股份有限公司技术部,吉林,长春,130012 |
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| 摘 要： | 提出一种新的复合组织制备工艺方法,即首先通过对板坯采取滚珠滚压的方法来实现其表面塑性变形,随后对板坯进行再结晶退火细化表面微观组织。采用有限元法对Q235坯料的滚珠滚压工艺进行数值模拟,得出了表面应变的分布规律,并且对滚压后及再结晶退火后的金相组织进行了观察。结果表明:滚珠滚压工艺能够实现板坯的表面塑性变形,辅以后继的再结晶退火工艺可以获得表面细晶组织和心部粗晶组织的复合组织。
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| 关 键 词： | 滚珠滚压 表面塑性变形 细晶组织 粗晶组织 复合组织 |
Surface plastic deformation regularity and microstructural evolution in ball milling of Q235 billet |
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| REN Tao-lin,XIE Bin-tao,XU Wen-chen,SHAN De-bin,LV Yan.Surface plastic deformation regularity and microstructural evolution in ball milling of Q235 billet[J].Forging & Stamping Technology,2010,35(1). |
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| Authors: | REN Tao-lin XIE Bin-tao XU Wen-chen SHAN De-bin LV Yan |
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| Affiliation: | 1.School of Materials Science and Engineering;Harbin Institute of Technology;Harbin 150001;China;2.Press Section Technology Department;First Automotive Works Car Co.;Ltd.;Changchun 130012;China |
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| Abstract: | A new technique was presented,which was able to localize the plastic deformation on the surface of the billet and refine the surface grains after recrystallization annealing through the ball milling.FEM was employed to simulate the process on the surface of Q235 billet and obtain the strain regularity,which proved that the ball milling could realize the surface plastic deformation.The metallography after the ball milling and the recrystallization annealing were also observed.The results indicate that the ba... |
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| Keywords: | ball milling surface plastic deformation fine grains coarse grains compound microstructures |
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