BRAZE ALLOY COMPOSITION WITH ENHANCED OXIDATION RESISTANCE AND METHODS OF USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a braze alloy composition which can be mixed with superalloy metal powder for forming a Pre-Sintering Preform (PSP). SOLUTION: A cobalt-based braze alloy composition comprises: 22 to 24.75% chromium by weight; 9 to 11% nickel by weight; 6.5 to 7.6% tungsten by weight; 3 to 4% tantalum by weight; 0.55 to 0.65% carbon by weight; 0.3 to 0.6% zirconium by weight; 0.15 to 0.3% titanium by weight; 1.5 to 2.6% boron by weight; 1 to 10% silicon by weight; and cobalt. COPYRIGHT: (C)2009,JPO&INPIT