Interfacial energy and match of cold pressure welded Ag/Ni and Al/Cu

来源期刊：中国有色金属学报(英文版)2002年第5期

论文作者：李云涛 杜则裕 马成勇

文章页码：814 - 817

Key words：cold pressure welding; interfacial energy; match relationship

Abstract: The technology of cold pressure welding was adopted to achieve the bonding of Al/Cu(limited soluble and forming compounds), Ag/Ni (hardly mutual soluble), and the relative state of interface was tested by HREM. The results indicate that stable interface is always corresponding to the low interfacial energy value; the stable interface is not coherent but partly-coherent because of the twisting of grain boundary caused by pressure, meanwhile existing dislocation. Namely, the interfacial match and other states under the condition of cold pressure welding are different from the situation that under the condition of thermal action. Moreover, theoretical analyses and calculation on the base of thermodynamics, crystallogeny, solid physics etc, were discussed.