Gold/Nickel/Copper/Aluminum/Silver Brazing Alloys For Brazing WC-Co To Titanium And Alloys Thereof, Brazing Methods, And Brazed Articles

摘要

A brazing material for brazing tungsten/carbide/cobalt substrates (e.g., wear pads) to substrates comprising titanium or alloys thereof (e.g., fan or compressor blades). The brazing material includes gold, nickel, silver, aluminum, and copper present in respective amounts to provide a post-braze hardness of between 450 and 600 KHN to thereby increase the impact resistance of the braze joint. The substrates may be brazed by induction heating at temperatures less than about 1800° F. (982° C.).