Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Liquid Phase Diffusion Bonding Procedure of Rene80/B/Rene80 System -Liquid Phase Diffusion Bonding Using B Powder Coating Method

Rene80/B/Rene80계의 액상확산 접합과정 -B분말 도포법을 이용한 액상확산접합

  • 정재필 (한구기계연구원 용접연구부) ;
  • 강춘식 (서울대학교 금속공학과)
  • Published : 1995.06.01
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Abstract

Rene80 superalloy was liquid phase diffusion bonded by using boron(B) as an insert material, where B has high diffusivity and higher melting point as an insert material. Bonding procedure and bonding mechanism of Rene80/B/Rene80 joint were investigated. As results, liquid metal was produced by solid state reaction between base metal and insert material on bonding zone. The liquid metal was produced preferentially at the grain boundary. Except for production of liquid metal, other bonding procedure was nearly same as TLP(Transient Liquid Phase) bonding. Bonding time, however, was reduced compared to prior result of TLP bonding. By bonding S.4ks at l453K, Ren80/B/Rene80 joint was isothermally solidified and homogenized where thickness of insert material was 7.5.mu.m.

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