退火条件对AgCuNi/TU1复合界面的影响  

Effect of Anneal Condition on the Interface of AgCuNi/TU1 Composites

作　　者：李佩[1] 周世平[1] 刘少斌[1] 刘绍虎[1] 陈丽华[1] 王健[1] 

机构地区：[1]昆明贵金属研究所,贵研铂业股份有限公司,云南昆明650106

出　　处：《贵金属》2010年第3期12-15,共4页Precious Metals

基　　金：云南省科研院所技术开发专项基金资(2006KFZX-13)

摘　　要：采用轧制复合法制备AgCuNi/TU1复合带材,使用EDS能谱仪分析不同退火条件下复合界面元素的扩散情况,利用两端不受扩散影响的扩散偶模型和Arrenius关系计算退火温度在550~750℃下Ag在TU1中的扩散系数、扩散常数与扩散激活能。结果显示：退火温度在550~750℃之间,分钟级退火时间下（退火时间〈5 min）,AgCuNi/TU1复合界面主要发生表面原子扩散,且扩散系数和扩散常数在同一数量级,而扩散激活能有明显差别。The AgCuNi/TU1 composites were prepared by roll bonding.The diffusion of the interface under different anneal conditions were studied by EDS.The diffusion coefficient,diffusion constant and diffusion activation energy of Ag in TU1 at 550～750℃ were calculated by using the diffusion couple model and Arrenius relation.The results showed that the diffusion of interface occurred as surface atom diffusion when the anneal time is 5 minutes.The diffusion coefficient and diffusion constant have the same order of magnitude.However,the diffusion activation energies were obvious differences.

关 键 词：金属材料 复合材料 扩散系数 扩散常数 扩散激活能 

分 类 号：TG146.32[一般工业技术—材料科学与工程]