Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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Characteristics of the Nd:YAG laser Spot Welding in $Cu_{54}Ni_{6}Zr_{22}Ti_{18}$ Bulk Metallic Glass Alloy

$Cu_{54}Ni_{6}Zr_{22}Ti_{18}$ 벌크비정질 합금의 Nd:YAG 레이저 점용접 특성

  • Kim, J.H. (Division of Materials Science & Engineering, Hanyang University) ;
  • Lee, J.H. (Laser Application Group, Korea Institute of Machinery & Materials) ;
  • Shin, S.Y. (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Bae, J.C. (R&D Division for Bulk Amorphous & Nano Materials, Korea Institute of Industrial Technology) ;
  • Lee, C.H. (Division of Materials Science & Engineering, Hanyang University)
  • 김종현 (한양대학교 신소재공학부) ;
  • 이제훈 (한국기계연구원 레이저응용시스템그룹) ;
  • 신승용 (한국생산기술연구원 벌크비정질 나노소재사업단) ;
  • 배정찬 (한국생산기술연구원 벌크비정질 나노소재사업단) ;
  • 이창희 (한양대학교 신소재공학부)
  • Published : 2005.08.30
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Abstract

Weldability is largely dependent on the phase evolution and the microstructure of the weld. For the weldability of the $Cu_{54}Ni_6Zr_{22}Ti_{18}$ bulk metallic glass, the crystallization affects the sensitivity of the weld to the brittle failure. In order to suppress the irreversible crystallization, Nd:YAG laser welding was chosen. The pulsed Nd:YAG laser was irradiated onto the BMG plate and the effects of the pulse shape [peak power intensity and pulse duration time] on the crystallinity were evaluated.

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