| 压扭变形工艺及在材料改性中的应用 |
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| 引用本文： | 弭光宝,薛克敏,张早明,周明智,李培杰.压扭变形工艺及在材料改性中的应用[J].哈尔滨工业大学学报,2009(11):169-172. |
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| 作者姓名： | 弭光宝 薛克敏 张早明 周明智 李培杰 |
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| 作者单位： | 清华大学新材料国际研发中心;合肥工业大学材料科学与工程学院;中国电子科技集团第38研究所 |
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| 基金项目： | 高校博士点专项基金资助项目(20040359005;20050003042) |
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| 摘 要： | 压扭变形是在变形体高度方向施加压力的同时,沿其横截面方向施加一扭矩的特殊塑性变形工艺,源于上世纪50年代,目前已经演变为大塑性变形法中的一种,并在制备块体纳米材料及高性能高致密度材料中得到应用.同时,该变形工艺的演化发展推动了其工艺装置的改进与研发,产生的不同加载方式下的工艺装置对于拓展压扭变形工艺的应用领域具有重要意义.
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| 关 键 词： | 压扭变形 大塑性变形 HPT法 材料改性 工艺装置 |
Compress-twist process and its application in property modification of material |
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| MI Guang-bao,XUE Ke-min,ZHANG Zao-ming,ZHOU Ming-zhi,LI Pei-jie.Compress-twist process and its application in property modification of material[J].Journal of Harbin Institute of Technology,2009(11):169-172. |
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| Authors: | MI Guang-bao XUE Ke-min ZHANG Zao-ming ZHOU Ming-zhi LI Pei-jie |
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| Affiliation: | 1 (1. National Center of Novel Materials for International Research,Tsinghua University,Beijing 100084,China; 2. School of Materials Science and Engineering,HeFei University of Technology,Hefei 230009,China; 3. China Electronics Technology Group Corpration No. 38 Institute,Hefei 230031,China) |
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| Abstract: | Compress-twist forming is a special plastic deformation process in which a pressure is exerted on the workpiece in the axial direction,and a twisting torque is exerted along the cross-section through the positive friction at the same time. The process came into being in the 1950 s,and now has been developed into a kind of severe deforming process. It has been applied to the preparation of bulk nanomaterials and high compact materials. The evolvement of the process promotes the amelioration and R&D of its equipments,and these equipments under different loading modes play important roles in enlarging the application field of compresstwist forming. |
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| Keywords: | compress-twist forming severe plastic deformation method of HPT property modification of mate- rial equipment |
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