Surface Hardening by Particle Injection Into Laser Melted Surface.
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
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.
- Lasers and Masers