Polished overlay coatings with enhanced durability

Details Polished overlay coatings with enhanced durability Polished overlay coatings with enhanced durability

1984-10-29

1986-02-11

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Microscopic interfacial wave or roughness

428687, 20412935, B32B 1500

Patent

active

045698899

ABSTRACT:
A method is described for improving the oxidation durability of overlay coatings. By polishing the surface to reduce the surface roughness to less than about 15 microinches AA the initial oxidation durability of the material, the point at which oxide spallation is first observed, can be increased from about 5 hours to about 200-300 hours.

REFERENCES:
patent: 4321310 (1982-03-01), Ulion et al.
patent: 4405660 (1983-09-01), Ulion et al.
patent: 4414249 (1983-11-01), Ulion et al.

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