| Cu-Cr原位复合材料组织性能研究 |
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| 引用本文： | 陈小红 刘平 田保红 张毅 刘勇 贾淑果 任凤章. Cu-Cr原位复合材料组织性能研究[J]. 材料热处理学报, 2007, 28(B08): 288-291 |
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| 作者姓名： | 陈小红 刘平 田保红 张毅 刘勇 贾淑果 任凤章 |
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| 作者单位： | [1]西安理工大学材料科学与工程学院,陕西西安710048 [2]上海理工大学电功能材料研究所,上海200093 [3]河南科技大学材料科学与工程学院,河南洛阳471003 |
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| 基金项目： | 国家自然科学基金（50571035）;国家863项目（2006AA032528）. |
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| 摘 要： | 采用感应加热熔炼及通过热锻和线拉变形结合中间热处理制备了Cu-15％Cr原位复合材料，用SEM和TEM等技术对形变Cu—Cr原位复合材料的Cr纤维形成过程、立体形态进行了分析。结果表明，在变形过程中Cr树枝晶发生转动，平行于线轴方向排列；Cr纤维立体形态则为卷边的薄片状。测定了形变Cu—Cr原位复合材料的抗拉强度，分析表明，强度随变形量的增加而提高，与纤维相间距呈Hall—Patch关系。
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| 关 键 词： | Cu—Cr原位复合材料 纤维相 抗拉强度 |
Microstructure and properties of Cu-Cr in-situ composites |
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| CHEN Xiao-hong, LIU Ping, TIAN Bao-hong, ZHANG Yi, LIU Yong, JIA Shu-guo, REN Feng-zhang. Microstructure and properties of Cu-Cr in-situ composites[J]. Transactions of Materials and Heat Treatment, 2007, 28(B08): 288-291 |
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| Authors: | CHEN Xiao-hong LIU Ping TIAN Bao-hong ZHANG Yi LIU Yong JIA Shu-guo REN Feng-zhang |
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| Abstract: | Cu-Cr in-situ composite was manufactured by inductive melting, casting, swaging, cold drawing and intermediate heat treatments. The evolution of filamentary microstructure and stereo shape were carried by SEM and TEM. During deformation the Cr dendrites were rotary movement and were aligned parallel to the wire axis. The Cr phase elongated into flanging ribbons. The tensile strength of deformation-processed Cu-Cr in-situ composite was measured, the results show the strength increased with increasing of the deformation. However, the strength follows a Hall-Patch type relationship with the Cr ribbon spacing. |
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| Keywords: | Cu-Cr in-situ composite fiber phase tensile strength |
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