Repair Method For TBC Coated Turbine Components

摘要

A method is provided for repairing a metallic turbine component which includes a thermal barrier coating system including a metallic bond coat (22) and a ceramic top coat (24). The method includes: (a) removing the top coat (24) using a mechanical process; (b) partially stripping the metallic bond coat (22) from the component, such that substantially no material of the component is removed; (c) repairing at least one defect in the turbine component; (d) applying a new metallic bond coat (26', 28') to the turbine component; and (e) applying a new ceramic top coat (24) over the metallic bond coat (26', 28').