文档介绍：第 19 卷第 8 期中国有色金属学报 2009 年 8 月
The Chinese Journal of Nonferrous Metals Aug. 2009
文章编号:1004-0609(2009)08-1480-08
Cu-Fe 复合材料的形变对其力学性能及导电性能的影响
陆月娇,田若鸣,周健,薛烽
(东南大学材料科学与工程学院,南京 211189)
摘要:采用原位变形法制备 Cu-8%Fe,Cu-12%Fe 和 Cu-16%Fe(质量分数)3 种复合材料,利用金相显微镜和扫
描电镜观察各材料的显微组织,利用拉伸试验和双臂电桥分别对力学性能和导电性能进行研究,并与经相同加工
过程的纯铜材料进行对比。结果表明:在形变加工过程中,Cu-Fe 复合材料中的 Fe 相由枝晶状逐渐变成沿形变方
向的纤维状结构;随应变量逐渐增加,纤维逐渐增长,间距和宽度逐渐减小,分布趋于均匀,排列方向趋于一致;
且随着应变量的增加,Cu-Fe 复合材料的硬度和屈服强度呈上升趋势,塑性和导电性能呈下降趋势;退火后其屈
服强度下降,导电性能增强。
关键字:Cu;Fe;复合材料;力学性能;导电性能
中图分类号:TG ; TG 113 文献标识码: A
Influence of deformation processing on mechanical and
conductivity properties of Cu-posites
LU Yue-jiao, TIAN Ruo-ming, ZHOU Jian, XUE Feng
(School of Materials Science and Engineering, Southeast University, Nanjing 211189, China)
Abstract: Cu-8%Fe, Cu-12%Fe and Cu-16%Fe (mass fraction) composites were prepared by in-situ synthesis technique
and heavy deformation processing. Metallography microscope and scanning electron microscope were used to observe
the microstructures of the Cu-posites. The mechanical properties and electrical conductivity were studied by
tensile test and double bridge, respectively. The three Gu-posites pared with pure copper treated in the
same way. The results show that, during the deformation process, the primary and second dendritic arms of Fe pha