General Electric Company

Pracheeshwar S Mathur

Murray S Smith, Jr

Mark S Hilboldt

An improved brazing alloy, particularly suited for use in high temperature gas turbine engines, has a composition range which exhibits X-ray inspection capability, improved stress rupture properties, good ductiity and oxidation resistance up to 1400.degree. F. The brazing alloy consists essentially of, by weight, about 20-80% Pd, 2-13% Cr, 1-4% B, balance being Ni and incidental impurities. The brazing alloy is capable of brazing in the 1800.degree.-2000.degree. F. temperature range and is less costly than Au-bearing brazing alloys currently in use for brazing in this temperature range.

Nickel-palladium-chromium-boron brazing alloy

A brazing alloy, particularly suited for use in high temperature gas turbine engines has a composition range which exhibits X-ray inspection capability, adequate stress rupture properties, ductility and oxidation resistance. The brazing alloy composition consists essentially of about 25-95% Pd, up to about 5% Si, up to about 3.5% B, balance being Co and incidental impurities, all percentages being by weight. The brazing alloy is capable of brazing in the 1800.degree.-2100.degree. F. temperature range and is less costly than current Au-bearing brazing alloys currently in use for brazing in this temperature range.

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Montgomery, OH, United States of America

Pracheeshwar S Mathur