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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.46  No.6 (2005)  >  pp.1440-1442

MATERIALS TRANSACTIONS
<<Previous article Vol.46  No.6 (2005)   pp.1440 - 1442 Next article>>

Characterization of the Gas Tungsten Arc Welded Cu54Ni6Zr22Ti18 Bulk Metallic Glass Weld

Jonghyun Kim1), Seungyong Shin1) and Changhee Lee2)
1) R&D Division for Bulk Amorphous and Nano Materials, Korea Institute of Industrial Technology
2) Division of Materials Science & Engineering, Hanyang University


Gas tungsten arc welding is well-established joining process for the structural materials. Due to the localized heat input, the non-uniform temperature distribution in weld is inevitable. In this regard, the thermal instability of the bulk metallic glass [BMG] should be considered for the weldability. Microstructure and phase evolutions of the Cu54Ni6Zr22Ti18 BMG weld were investigated and the fusion welded BMG weld is defined and the solid-state crystallization of the heat affected zone made the weld brittle. Furthermore, the thermal stress induced crack was propagated along the crystallized heat affected zone.


Keyword:
Cu54Ni6Zr22Ti18 bulk metallic glass, Gas tungsten arc welding, Heat affected zone

Received: March 14, 2005
Accepted: May 16, 2005 , Published online: October 18, 2005
Copyright (c) 2005 The Japan Institute of Metals

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