Abstract
Ti-10 mass%Zr alloy was resistance brazed with laminated filler metals composed of Ni-Cu and Cu-Be alloy foils by varying the method of cooling. The effect of rapid cooling on the tensile strength of the joints was investigated in connection with the brazed microstrucrtures.The joint with the highest tensile strength of 642 MPa is obtained by using the laminated filler metal of a 50 μm thick Ni-Cu alloy foil interposed between 15 μm thick Cu-Be alloy foils and by subjecting to rapid cooling, the rate of which is about 400 K/s. The brazed microstructure of the joint exhibits that the stabilized β-Ti within the filler metal region interconnects the base metals, which causes a characteristic of its high joint strength.
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