| 剧塑性变形制备超细晶/纳米晶结构金属材料的研究现状和应用展望 |
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| 引用本文： | 康志新,彭勇辉,赖晓明,李元元,赵海东,张卫文.剧塑性变形制备超细晶/纳米晶结构金属材料的研究现状和应用展望[J].中国有色金属学报,2010,20(4). |
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| 作者姓名： | 康志新 彭勇辉 赖晓明 李元元 赵海东 张卫文 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,国家金属材料近净成形工程技术研究中心,广州,510640 |
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| 基金项目： | 广东省科技攻关计划，广州市科技支撑计划资助项目 |
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| 摘 要： | 综合目前剧塑性变形方法制备超细晶及纳米晶结构金属材料的研究现状,介绍等通道转角挤压、高压扭转、累积叠轧焊、多向锻造等剧塑性变形方法及其特点与原理;探讨剧塑性变形金属材料的组织演变和晶粒细化机制;分析金属材料经剧塑性变形后强度与延展性的变化趋势,及其对超塑性变形的影响规律;展望剧塑性变形方法对金属材料应用的前景。
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| 关 键 词： | 金属材料 组织演变 超细晶 纳米晶 剧塑性变形 超塑性 |
Research status and application prospect of ultrafine grained and/or nano-crystalline metallic materials processed by severe plastic deformation |
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| KANG Zhi-xin,PENG Yong-hui,LAI Xiao-ming,LI Yuan-yuan,ZHAO Hai-dong,ZHANG Wei-wen.Research status and application prospect of ultrafine grained and/or nano-crystalline metallic materials processed by severe plastic deformation[J].The Chinese Journal of Nonferrous Metals,2010,20(4). |
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| Authors: | KANG Zhi-xin PENG Yong-hui LAI Xiao-ming LI Yuan-yuan ZHAO Hai-dong ZHANG Wei-wen |
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| Affiliation: | KANG Zhi-xin,PENG Yong-hui,LAI Xiao-ming,LI Yuan-yuan,ZHAO Hai-dong,ZHANG Wei-wen (National Engineering Research Center of Near-Net-Shape Forming for Metallic Materials,School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | With a view to the current researches of ultrafine grained and nano-crystalline metallic materials processed by severe plastic deformation(SPD),several typical methods,characteristics and principle of SPD were introduced,such as equal channel angular pressing,high pressure torsion,accumulative roll-bonding and multiple forging.The microstructural revolution and grain refinement mechanism of metallic materials fabricated by SPD were discussed.The change tendency of the strength and ductility of the metallic ... |
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| Keywords: | metallic material microstructural revolution ultrafine grain nano-crystalline severe plastic deformation superplasticity |
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