• Title/Summary/Keyword: Brazing filler

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Brazing 기술의 기초와 실제 II

  • 강정윤;김우열
    • Journal of Welding and Joining
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    • v.10 no.3
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    • pp.13-25
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    • 1992

  • 1.삽입금속(Insert metal or Filler metal) 1)삽입금속의 성질 2)삽입금속의 종류 2.플락스 1)플락스의 작용 2)플락스의 구비조건 3)플락스의 종류

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Low Temperature Diffusion Brazing of Commercial Pure(CP)-Ti alloy with Zr-based Filler Metal (Zr기 필러메탈을 이용한 상용 순 티타늄(CP-Ti) 합금의 저온 브레이징 특성)

  • Sun, J.H.;Shin, S.Y.;Hong, J.W.
    • Journal of the Korean Society for Heat Treatment
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    • v.29 no.1
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    • pp.1-7
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    • 2016

  • Titanium and its alloys can be usually joined with brazing method. And the alloys should be brazed at low temperature to keep their original microstructure. In this study, the mechanical strength and microstructure of the CP-Ti joint-brazed with $Zr_{54}Ti_{22}Ni_{16}Cu_8$ filler metal having melting temperature of $774{\sim}783^{\circ}C$ were investigated. The tensile strengths of the joint-brazed at $800^{\circ}C$ with $100^{\circ}C/min$ of cooling rate showed more than 400 MPa which was as high as base metal. The $Widmanst{\ddot{a}}tten$ structure consisting of Ti and $Ti_2Ni$ phase was observed in the joint area. However, the tensile strengths of the joint-brazed at $800^{\circ}C$ with $15^{\circ}C/min$ of cooling rate were decreased and the Ti, $(Ti,Zr)_2Ni$ and $Ti_2Ni$ phases were observed at the joint area. It is believed that the $(Ti,Zr)_2Ni$ laves phases could decrease the mechanical strength of the joint and the cooling rate should be controled to get high strength of the titanium joint.

  • https://doi.org/10.12656/jksht.2016.29.1.1 인용 PDF KSCI