FCC Ni-Cu及Ni-Mn合金互扩散系数测定  

STUDY ON INTERDIFFUSION COEFFICIENTS IN FCC Ni-Cu,Ni-Mn ALLOYS

作　　者：徐晓军[1] 朱娜琼[1] 鲁晓刚[1] 何燕霖[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200444

出　　处：《上海金属》2015年第6期73-76,共4页Shanghai Metals

基　　金：国家973计划项目(项目号:2012CB619601)

摘　　要：结合扩散偶技术及电子探针微区分析技术,利用Sauer-Freise方法,得到FCC NiCu合金在1 123、1 273 K温度下的互扩散系数和Ni-Mn合金在1 273 K温度下的互扩散系数。实验证实互扩散系数是温度与成分的函数。利用所得互扩散系数外推得到1 123、1 273 K温度下Cu在Ni中的计算杂质扩散系数和1 273 K温度下Mn在Ni中的计算杂质扩散系数。By employing diffusion couple and the electron-probe microanalysis technique, the interdiffusion coefficients in FCC Ni-Cu alloys at 1 123, 1 373 K and in FCC Ni-Mn alloys at 1 273 K were obtained by means of the Sauer-Freise method. The experimental data verified the interdiffusion coefficients were functions of temperature and composition. Based on the available interdiffusion coefficients data, the impurity diffusion coefficients of Cu in Ni at 1 123, 1 273 K and Mn in Ni at 1 273 K were obtained by means of extrapolation.

关 键 词：Ni-Cu合金 Ni-Mn合金 扩散偶Sauer-Freise方法 互扩散系数 

分 类 号：TQ153.43[化学工程—电化学工业]