宋鲁男,刘嘉斌,黄六一,曾跃武,孟亮

• 1:浙江大学材料系
• 2:浙江大学力学系
• 3:浙江省特种设备检验研究院

摘要(Abstract)：

研究了Cu-3%Cr合金500℃时效不同时间其组织和性能的变化。时效过程中合金析出了大量弥散沉淀相,合金硬度和电导率均明显增加。基于相变动力学理论推导了合金时效过程中的Avrami经验方程和电导率随时间变化的方程,所得电导率预测曲线与实测值有良好的吻合。

关键词(KeyWords)： Cu-Cr合金;时效;电导率

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50671092);; 国家科技支撑计划项目(2009BAG12A09);; 浙江省自然科学基金项目(Y4100193)

作者(Author): 宋鲁男,刘嘉斌,黄六一,曾跃武,孟亮

DOI: 10.13289/j.issn.1009-6264.2012.s2.015

参考文献(References)：

• [1]West E G,Copper and its Alloys[M].Chichester:Ellis Horwood,1982.
• [2]DENG Jian-qi,ZHANG Xiu-qing,SHANG Shu-zhen,et al.Effect of Zr addition on the microstructure and properties of Cu-10Cr in situ composites[J].Materials Design,2009,30(10):4444.
• [3]WANG Xiao-feng,ZHAO Jiu-zhou,HE Jie.Investigation on the microstructure and mechanical properties of the spray-formed Cu-Cr alloys[J].Materials Science and Engineering A,2007,460-461:69-76.
• [4]刘平,康布熙,曹兴国,等.快速凝固Cu-Cr合金时效析出的共格强化效应[J].金属学报,1999,35(6):561-564.LIU Ping,KANG Bu-xi,CAO Xing-guo,et al.Coherent strengthing of aging precipitation in rapidly solidified Cu-Cr alloy[J].Acta MetallurgicaSinica,1999,35(6):561.
• [5]Chbihi A,Sauvage X,Blavette D.Atomic scale investigation of Cr precipitation in copper[J].Acta Materialia,2012,Doi(10.1016/j.actamat.2012.01.038.
• [6]Fujii T,Nakazawa H,Kato M,et al.Crystallography and morphology of nanosized Cr particles in a Cu-0.2%Cr alloy[J].Acta Materialia,2000,48(5):1033.
• [7]王庆娟,徐长征,黄美权,等.Cr分布对Cu-Cr合金性能的影响[J].功能材料,2007,38(7):1125-1127.WANG Qing-juan,XU Chang-zheng,HUANG Mei-quan,et al.Effect of Cr distribution on the properties of Cu-Cr alloy[J].Journal of FunctionalMaterials,2007,38(7):1125-1127.
• [8]SU Juan-hua,LIU Ping,LI He-jun,et al.Phase transformation in Cu-Cr-Zr-Mg alloy[J].Materials Letters,2007,61(27):4963-4966.
• [9]Jin Y,Adachi K,Takeuchi T,et al.Ageing characteristics of Cu-Cr in-situ composite[J].Jounal of Materials Science,1998,33(5):1333.
• [10]张毅,刘平,田保红,等.形变Cu-15Cr原位复合材料的组织和力学性能[J].材料热处理学报,2007,28(4):1-4.ZHANG Yi,LIU Ping,TIAN Bao-hong,et al.Microstructure and mechanical properties of deformation-processed Cu-15Cr in situ composition[J].Transactions of Materials and Heat Treatment,2007,28(4):1-4.
• [11]贾淑果,刘平,宋克兴,等.Cu-Cr-Zr原位复合材料的组织与性能[J].中国有色金属学报,2010,20(7):1334-1338.JIA Shu-guo,LIU Ping,SONG Ke-xing,et al.Microstructures and properties of Cu-Cr-Zr in-situ composites[J].The Chinese Journal of NonferrousMetals,2010,20(7):1334-1338.
• [12]雷静果,刘平,赵冬梅,等.用导电率研究Cu-Ni-Si-Cr合金时效早期相变动力学[J].材料热处理学报,2003,24(4):22-25.LEI Jing-guo,LIU Ping,ZHAO Dong-mei,et al.Study on the transformation kinetics of early stage aging of Cu-Ni-Si-Cr alloy by measuring the electricconductivity[J].Transactions of Materials and Heat Treatment,2003,24(4):22-25.
• [13]戚正风.固态金属中的扩散与相变[M].北京:机械工业出版社,1998.

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