Brazing of Ti Using a Zr-Based Amorphous Filler

Abstract:

The microstructure and mechanical properties of Ti joints brazed with a Zr41.2Ti13.8Ni10.0Cu12.5Be22.5 (at.%) amorphous filler were investigated. With a Zr-based amorphous filler, in this study, Ti joints with a homogeneous composition could be obtained by heating to well below the α-β transformation temperature for a short time, so that the undesirable effects of the high temperature heating are considerably diminished. The joints brazed at 790 °C for 10 min consisted of the coarse acicular structure rather than the fine Widmanstätten structure which generally deteriorates the ductility of the joints. The joints with the homogenous coarse acicular structure, i.e. without a residual liquid region, show almost the same mechanical properties as those required for base metals without heating. Although the residual liquid region in the joints deteriorates the ductility of the joints, this region could be successfully removed by a diminution in the quantity of the filler.

• Periodical: Solid State Phenomena (Volume 135)
• Pages: 131-134
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.135.131
• Online since: February 2008
• Authors: Jung G. Lee, Jong Keuk Lee, Min Ku Lee, Deog Nam Shim, Chang Kyu Rhee
• Keywords: Amorphous Filler, Bonding Strength, Brazing, Brazing Temperature, Titanium (Ti)

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