Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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EFFECT OF INTERMETALLIC COMPOUND ON MECHANICAL PROPERTIES OF Al-Cu DISSIMILAR BRAZING JOINT

  • Koyama, Ken (Department of Mechanical System Engineering Graduate School of Engineering Hiroshima University) ;
  • Shinozaki, Kenji (Department of Mechanical System Engineering Graduate School of Engineering Hiroshima University) ;
  • Ikeda, Kenji (Department of Mechanical System Engineering Graduate School of Engineering Hiroshima University) ;
  • Kuroki, Hidenori (Department of Mechanical System Engineering Graduate School of Engineering Hiroshima University)
  • Published : 2002.10.01
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Abstract

Brazing of Al to Cu using AI-Si-Mg-Bi brazing alloy has been carried out in the vacuum furnace. In the bonded interlayer, there were two kinds of intermetallic compounds. One of these intermetallic compounds was e phase and the other was b phase. The growth of b phase was controlled by diffusion Al into Cu. Deformation behavior of Al-Cu brazing joint was brittle without deformation of the base metal. Shear strength of the joint was only about 20MPa. The shear specimen broken in the intermetallic compound, which was mainly e phase. Shear strength did not depend on the bonding temperature.

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