Accession Number : ADD009186

Title :   Surface Hardening by Particle Injection Into Laser Melted Surface.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Schaefer,Robert J ; Ayers,Jack D ; Tucker,Thomas R

Report Date : 10 Nov 1981

Pagination or Media Count : 5

Abstract : A method is provided of impregnating the surface of a metal substrate with wear resistant particles to impart wear resisting characteristics to the surface. The substrate surface is subjected to a relatively moving high-powered laser beam to cause localized surface melting in passes there-across, and hard wear resistant particles are forcibly velocity injected into the melt. The particles are captured upon solidification of the melt pool and retained therein by metallurgical bond. A wear resistant layer is formed which is an integral part of the underlying material.

Descriptors :   *Patents, *Laser beams, *Hardening, *Surfaces, *Particles, Melting, Injection, Inventions, Impregnation, Methodology, Metal coatings, Substrates, Wear resistance, Layers, Solidification

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE