Abstract
Mechanical properties of work hardened pure titanium joint brazed with Ti-Cu-Cr-Al filler metal were investigated.Test specimens were brazed with filler metal containing 29%Ti, 62.5%Cu, 6.5%Cr and 2%Al in a vacuum. Brazing temperature were 850°C, 900°C, 1, 000°C and 1, 100°C for 10sec. Tensile strength of butt joints were comparable to that of joints brazed with conventional Ti-Ni-Cu filler metal, and hardness at the joint was lower. The reaction of filler metal with base metal was modertely and damage of base metals were less. The addition of pressure to joint during brazing gave significant effect on joint strength.
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