Method for producing spallation-resistant protective layer on hi

Details Method for producing spallation-resistant protective layer on hi Method for producing spallation-resistant protective layer on hi

1993-03-01

1999-05-11

King, Roy V.

Coating processes

Coating by vapor, gas, or smoke

427250, 4272557, 4274191, 4274192, 4273722, C23C16/00

Patent

active

059026383

ABSTRACT:
A method for producing on the surface of a nickel- or cobalt-based superalloy article a spallation-resistant aluminum oxide layer. An aluminum oxide layer is produced, typically under tensile stress, by chemical vapor deposition at low temperatures on a metal aluminide layer that has been deposited on the surface of the article whereby nickel or cobalt from the superalloy surface reacts with an aluminum compound to form the metal aluminide layer. The aluminum oxide layer under tensile stress is then heated to induce cracking therein, which imparts spallation resistance thereto. If desired, a thermal barrier layer may be deposited on the aluminum oxide layer.

REFERENCES:
patent: 3677789 (1972-07-01), Bungardt et al.
patent: 4132816 (1979-01-01), Benden et al.

Affiliated with

Also associated with

Rating

Method for producing spallation-resistant protective layer on hi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing spallation-resistant protective layer on hi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing spallation-resistant protective layer on hi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-244689