Local repair process of thermal barrier coatings in turbine engine components

摘要

Processes locally repairing a thermal barrier coating system (10) on a turbine component (14) that has suffered localized spallation includes locally cleaning a spalled region (20) with water to remove spallation from the spalled region (20) and form a tapered profile in the existing thermal barrier coating (10); and locally thermally spraying (24) a powder mixture into the cleaned localized spalled region (20) to form a repaired thermal barrier coating (26). Also disclosed herein are repair processes for platforms of bucket turbine engine components (50).