2215 熱応力を利用した拡散接合とその界面接合評価(J10-2 接合界面強度評価,J10 締結・接合部の力学とプロセス)

概要

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For a reliability of composite materials often used in industrial products and structures, it is important to evaluate the bonding condition on the interface. A model specimen using SK7 steel with the bonding interface was made by diffusion bonding using thermal stress at temperatures of 1023K, 1073K and 1173K. For these specimens, micro-Vickers indentations were impressed on the interface, and then the shape of the indentation was examined using a laser microscope. As a result, the diagonal length across the interface of the indentation was larger with worse bonding condition. In addition, opening displacement near the opening tip on the interface were related to the micro-Vickers indentation shape, concerning the bonding temperatures.
2005-09-18