| 等径角挤压法制备超细晶的研究现状 |
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| 引用本文： | 李金山,曹海涛,胡锐,陈忠伟,耿兴国.等径角挤压法制备超细晶的研究现状[J].特种铸造及有色合金,2004(3):1-3. |
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| 作者姓名： | 李金山 曹海涛 胡锐 陈忠伟 耿兴国 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 总结了等径角挤压(Equal Channel Angular Pressing，ECAP)过程中的影响因素、晶粒细化的机理等方面的研究进展，讨论了挤压温度、挤压速度在ECAP过程中对材料的影响，简述了ECAP的变形途径、变形次数对材料晶粒、材料变形量的影响。论述了由等径角挤压方法制备超细晶材料的发展现状并提出了一些需要进一步深入研究的方面。
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| 关 键 词： | 等径角挤压 深度塑性变形 纯剪切 超细晶材料 |
| 文章编号： | 1001-2249(2004)03-0001-03 |
| 修稿时间： | 2003年10月20 |
Prensent Status of the Ultra-fine Grain Materials Processed by Equal Channel Angular Pressing(ECAP) |
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| Li Jinshan Cao Haitao Hu Rui Chen Zhongwei Geng Xingguo.Prensent Status of the Ultra-fine Grain Materials Processed by Equal Channel Angular Pressing(ECAP)[J].Special Casting & Nonferrous Alloys,2004(3):1-3. |
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| Authors: | Li Jinshan Cao Haitao Hu Rui Chen Zhongwei Geng Xingguo |
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| Abstract: | The progress in effective factors and the grain refinement mechanism in ECAP was summarized. The effects of the pressing temeprature and speed on the materials during ECAP were discussed. The effects of deformation approaches and times on grain size and deformation degree of the materials were reviewed briefly. Approaches to present status of the ultra-fine grain materials processed by ECAP were performed and some further research issues were proposed. |
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| Keywords: | ECAP SPD Simple Shear Ultra-fine Grain Materials |
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