Metallic coating of improved life

Details Metallic coating of improved life Metallic coating of improved life

1987-07-06

1988-10-04

Stallard, Wayland

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

2940218, 427142, 427328, 428609, 428614, 428680, B32B 1501

Patent

active

047756020

ABSTRACT:
A method for improving oxidation resistance life of a metallic coating deposited on a metallic alloy including boron treats the alloy to reduce the boron prior to depositing the coating. The article provided by using a diffusion coating method has a diffusion zone between the coating and the alloy substrate characterized by the substantial absence of boride needles traversing the diffusion zone from the coating into the alloy.

REFERENCES:
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patent: 4004047 (1977-01-01), Grisik
patent: 4098450 (1978-07-01), Keller et al.
patent: 4249963 (1981-02-01), Young
patent: 4285459 (1981-08-01), Baladjanian et al.
patent: 4381944 (1983-05-01), Smith, Jr. et al.
patent: 4478638 (1984-10-01), Smith, Jr. et al.
Ser. No. 056,175 S. Ferrigno, et al--Inventors Filing Date: 6/1/85.

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