退火温度对银包铜丝材界面和力学性能的影响  

Effect of Annealing Temperature on Interface and Mechanical Properties of Silver Clad Copper Wires

作　　者：杜文佳[1,2] 谢明[1,2] 溥存继[1,2] 杨云峰[1,2] 刘洪江[1,2] 张吉明[1,2] 陈永泰[1,2] 刘满门[1,2] 胡洁琼[1,2] 王塞北[1,2] 

机构地区：[1]贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室,云南昆明650106 [2]昆明贵金属研究所云南省贵金属材料重点实验室,云南昆明650106

出　　处：《稀有金属材料与工程》2015年第2期452-456,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51164015);云南省院所专项课题(2011CF012);云南省创新团队(2012FC027);昆明市科技创新团队(2012-01-01-A-R-07-0005)

摘　　要：采用固液浇注和拉拔制备了银包铜复合细丝,研究了不同退火温度对界面及力学性能的影响、反复弯曲载荷条件下材料结合性能与材料硬度及界面区域微观组织的变化规律。利用光学显微镜、扫描电镜和X射线能量色散谱,研究了界面区域的微观形貌、元素分布与界面结合性能的关系。结果表明：两侧沿界面扩散区域其宽度随退火温度升高而增加。在400~500℃,保温60 min真空热处理,界面具有良好的结合性能。Ag/Cu composite wires were prepared by a solid-liquid casting method and drawing. The influence of annealing temperature on interface and mechanical properties of the Ag/Cu bimetal composite wires was investigated. The Ag/Cu interface was analyzed by scanning electron microscope and optical microscope to investigate the microstructure, elements distribution and bonding level. The effect of annealing temperature on diffusion thickness was also analyzed by EDS and line scan. The results show that the width of the diffusion region along the interface in the both sides increases with higher annealing temperature. Good bonding properties of the interface could be obtained when the optimal annealing temperature is 400 oC ~ 500 oC and the holding time 60 min.

关 键 词：银包铜 退火温度 界面 力学性能 扩散 

分 类 号：TG156.2[金属学及工艺—热处理] TB331[金属学及工艺—金属学]