Nickel-base superalloy having an optimized platinum-aluminide co

Details Nickel-base superalloy having an optimized platinum-aluminide co Nickel-base superalloy having an optimized platinum-aluminide co

1995-12-22

2000-05-23

Jones, Deborah

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428610, 428680, 428332, 428621, 427250, 416241R, B32B 1504, B32B 514, C23C 2800, B63H 1100

Patent

active

060664053

ABSTRACT:
A nickel-base superalloy substrate includes a surface region having an integrated aluminum content of from about 18 to about 24 percent by weight and an integrated platinum content of from about 18 to about 45 percent by weight, with the balance components of the substrate. The substrate is preferably a single-crystal advanced superalloy selected for use at high temperatures. The substrate may optionally have a ceramic layer deposited over the platinum-aluminide region, to produce a thermal barrier coating system. The platinum-aluminide region is produced by diffusing platinum into the substrate surface, and thereafter diffusing aluminum into the substrate surface.

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