John Martin Allison

US Patent:

46017950, Jul 22, 1986

Filed:

Mar 27, 1985

Appl. No.:

6/716789

Inventors:

Gerald R. Smith - Columbia MD
John E. Allison - Bowie MD

Assignee:

The United States of America as represented by Secretary of Interior - Washington DC

International Classification:

C25D 550
C25D 1500

US Classification:

204 16

Abstract:

A method of coating a metal substrate with a ternary or greater alloy of a redetermined composition is disclosed. Initially, a first and second metals are electrodeposited on the substrate using an aqueous electrolyte. At least one metal powder is simultaneously mixed in the electrolyte as the first and second metals are electrodeposited so that a portion of the metal powder is occluded in the electrodeposited metal coating. The rate of occlusion of the metal powder is controlled by the volume percent of the metal powder in the electrolyte. Finally, the metal coating and substrate are heat treated to diffuse the occluded metal powder in the coating and to form the desired alloy coating. A plurality of metal powders can be mixed in the electrolyte according to the present method. In addition, a diffusion barrier coating can be initially provided on the metal substrate.

Address:

828 Wrentham Dr, Saginaw, TX 76179

VIN:

1GCEC14X47Z189221

Make:

CHEVROLET

Model:

SILVERADO 1500 CLASSIC

Year:

2007