Patent ID: 6569492
Filing Date: 2003-05-27
Classification: C23C,F01D,F05D,Y10T

Abstract:
Process of repairing a damaged, degraded, or consumed MCrAlY-coating of an article after use of the article at a temperature sufficient to partially deplete Al or Cr from the MCrAlY-coating, the process comprising:repairing the MCrAlY-coating locally by replacement with new MCrAlY; and aluminising or chromising the partially depleted MCrAlY-coating on the surface of the entire article so that Al or Cr is at least partially diffused into the partially depleted MCrAlY-coating to replenish an amount of Al or Cr in the partially depleted MCrAlY-coating, wherein the step of aluminising or chromising occurs before or after repairing the MCrAlY-coating locally.