| 中间退火对形变Cu-15Cr-O.1Zr原位复合材料性能的影响 |
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| 引用本文： | 高林华,李炎,刘平,陈小红,贾淑果,田保红.中间退火对形变Cu-15Cr-O.1Zr原位复合材料性能的影响[J].机械工程材料,2008,32(11). |
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| 作者姓名： | 高林华 李炎 刘平 陈小红 贾淑果 田保红 |
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| 作者单位： | 河南科技大学材料科学与工程学院;西安理工大学材料科学与工程学院;上海理工大学机械工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50571035); 国家“863”计划资助项目(2006AA03Z2528) |
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| 摘 要： | 研究了采用中间退火+冷变形方法制备的形变Cu-15Cr-0.1Zr原位复合材料的显微组织、抗拉强度和导电性。结果表明:铸态铬相为树枝晶,在变形过程中,铬相变成纤维状,横截面上呈卷曲薄片状;适当的中间退火能显著提高其电导率;配合适当的中间退火与冷变形,可以得到较好的强度和导电性;应变量为6.43时,采用450℃+400℃或500℃+500℃两次中间退火工艺制备的形变Cu-15Cr-0.1Zr原位复合材料具有较好的性能组合,分别为1227 MPa/64.8%IACS、1025 MPa/71.5%IACS。
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| 关 键 词： | 形变原位复合材料 强度 电导率 中间退火 Cu-15Cr-0.1Zr合金 |
Effects of Intermediate Annealing on Properties of Deformation Processed Cu-15Cr-0.1Zr in Situ Composites |
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| GAO Lin-hua,LI Yan,LIU Ping,CHEN Xiao-hong,JIA Shu-guo,TIAN Bao-hong.Effects of Intermediate Annealing on Properties of Deformation Processed Cu-15Cr-0.1Zr in Situ Composites[J].Materials For Mechanical Engineering,2008,32(11). |
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| Authors: | GAO Lin-hua LI Yan LIU Ping CHEN Xiao-hong JIA Shu-guo TIAN Bao-hong |
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| Abstract: | The structure,strength and electrical conductivity of deformation processed Cu-15Cr-0.2Zr in situ composites obtained by cold drawing combined with intermediate annealing were studied.The results showed that the as cast Cr phase was dendrite.Cr phase was drawn into fine ribbons during the drawing process and the Cr ribbons were curl and fold in cross section.The electrical conductivity can be obviously improved by appropriately intermediate annealing.Combination of cold drawing with appropriate intermediate... |
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| Keywords: | deformation processed in situ composite strength conductivity intermediate annealing Cu-15Cr-0 1Zr alloy |
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