Patent ID: 6726086
Filing Date: 2004-04-27
Classification: B23K,B23P,C21D,C22F

Abstract:
A method comprising:casting an alloy material to form a component; performing a solution heat treatment on the component; subjecting the component to an operating environment; applying an alloy powder mixture to the component; and bonding the alloy powder mixture to the component by liquid phase diffusion bonding using a brazing heat treatment that incorporates the solution heat treatment, the alloy powder mixture selected to achieve a desired material property when exposed to the brazing heat treatment, and further comprising: selecting the alloy material to be IN 939; selecting the alloy powder mixture to be a 50/50 ratio by weight percent of IN 939 and AM 775 alloys; performing the solution heat treatment as heating the component to 2,120Â° F. for four hours followed by cooling to below 1,000Â° F. in twenty minutes or less; and performing the brazing heat treatment cycle as heating the component to 2,120Â° F. for four hours, cooling the component to 2,050Â° F. and holding for four hours, followed by cooling from 2,050Â° F. to below 1,000Â° F. in twenty minutes or less.