ON THE INTERFACIAL STRUCTURE AND COHESION STRENGTH OF Ag-Cu COMPOSITE MATERIAL
WANG Zhixing; LAI Zuhan; LIU Guolu; WEI Hairong (Northeast Institute of Technology; Shenyang)
Cite this article:
WANG Zhixing; LAI Zuhan; LIU Guolu; WEI Hairong (Northeast Institute of Technology; Shenyang). ON THE INTERFACIAL STRUCTURE AND COHESION STRENGTH OF Ag-Cu COMPOSITE MATERIAL. Acta Metall Sin, 1983, 19(5): 46-52.
Abstract The interracial structure and cohesion strength of Ag-Cu bimetal composite material, obtained by hot-prossing, has been examined. X-ray diffraction patterns show that a binary solid solution containing Ag or Cu respectively is found on each side of the interface. The fracture surface of the tensile specimen made of such bimetal composite material lies on the Ag side of the interface, and the interface itself does not split. The Seach's quasi-chemical method, which is modified to evaluate the cohesion strength of the bimetal interface, gives the theoretical strength of 287.5 MN/m~2, which is higher than that of pure Ag. This is in agreement with the experimental observations. It seems to be concluded that the hotpressing is available to produce a stronger interracial cohesion of such bimetal composite material.
