QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY
Print ISSN : 0288-4771
Brazing of titanium with Ag-based filler metals in the air
Takehiko WatanabeYutaka HigoTakayuki MikiAtushi Yanagisawa
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1994 Volume 12 Issue 4 Pages 502-508

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Abstract

In this study, we developed Ag-based filler metals and new fluxes in order to braze commercially pure titanium in the air.
The fluxes consisting of AgCI or CuCl added with small content of LiF can provide good wetting of the Ag-based filler metals on the titanium surface. In particular, the flux with the composition of 90%AgCI-10%LiF is the most effective from the viewpoint of the wetting and the joint strength. The joint brazed with 70%Ag-30%Zn filler metal through the metallizing process shows higher tensile strength than that of the joint brazed with the conventional filler metal.
The adequate addition of copper to 70Ag-30Zn filler metal increases the strength of the brazed joint, but the addition of nickel to the Ag-Zn-Cu system filler metal is harmful to the strength of the joint.

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