Patent ID: 9174314
Filing Date: 2015-11-03
Classification: B22D,B23K,B23P,F01D,F05D,Y02T,Y10T

Abstract:
1. A method for repairing a cracked superalloy component, comprising: providing a superalloy component with a substrate region having a crack therein; heating the substrate region to a desired isothermal hold temperature in a range of between above 800° C. (1472° F.) and below said substrate's incipient melting point; melting superalloy filler in a heater; isothermally filling the crack at least partially with molten superalloy filler poured from the heater; and solidifying the cast superalloy filler to form a diffusion bonded, crack-free patch, without any significant localized melting of the substrate material that might otherwise induce solidification crack formation.