Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1984-09-18
1999-12-28
Nelson, Peter A.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
428556, 428564, 428704, 427123, 427287, 75244, B22F 704, B05D 500
Patent
active
060079223
ABSTRACT:
A new family of chromium boride coatings having excellent adhesive wear and corrosion resistance is disclosed. The coatings comprise hard, ultrafine, chromium boride particles dispersed in a metal matrix, the particles having an average particle size of less than one micron and constituting less than about 30 volume percent of the coating, the balance being metal matrix. The metal matrix may be composed of nickel or a nickel base alloy containing a metal selected from the group consisting of chromium, silicon and iron. The coatings may be prepared by a process which comprises depositing a mechanically blended powder mixture of chromium metal or a chromium alloy or mixture of both, and a boron-containing alloy onto a substrate and then heat treating the as-deposited coating. The heat treatment effects a diffusion reaction between the deposited elements resulting in the formation of ultrafine particles of chromium boride dispersed in a metal matrix. The coating can be deposited onto the substrate using any of the known deposition techniques.
REFERENCES:
patent: 3970445 (1976-07-01), Gale et al.
patent: 4011051 (1977-03-01), Helton et al.
patent: 4101319 (1978-07-01), Beyer et al.
patent: 4113920 (1978-09-01), Helton et al.
patent: 4185136 (1980-01-01), Wasserman et al.
patent: 4401724 (1983-08-01), Moskowitz et al.
patent: 4469532 (1984-09-01), Nicolas
patent: 4485148 (1984-11-01), Rashid et al.
patent: 4513062 (1985-04-01), Suzuki et al.
Nemeth Joseph Patrick
Sue Jiinjen Albert
Tucker, Jr. Robert Clark
Nelson Peter A.
O'Brien Cornelius F.
Union Carbide Coatings Service Corporation
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