Method for repairing components using environmental bond...

Details Method for repairing components using environmental bond... Method for repairing components using environmental bond...

2008-05-13

2008-05-13

Hendricks, Keith D. (Department: 1794)

Coating processes

Restoring or repairing

Metal article

C427S140000, C427S328000

Reexamination Certificate

active

07371426

ABSTRACT:
According to an embodiment of the invention, a repaired component is disclosed. The repaired component comprises an engine run component having a base metal substrate, a portion of the base metal substrate between about 1-3 mils in thickness and an overlying bond coat having been removed to create a remaining base metal substrate of reduced thickness. The repaired component further comprises a lower growth environmental bond coating comprising an alloy having an aluminum content of about 10-60 atomic percent applied to the remaining base metal substrate so that upon subsequent repair of the component, less than about 1-3 mils in thickness of the remaining base metal substrate is removed because of less environmental coating growth into the substrate than the prior bond coat. Advantageously, the repaired component has extended component life and increased repairability.

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