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Method of applying a wear-resistant composite coating to an article |
| T967009 |
Method of applying a wear-resistant composite coating to an article
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| Inventor: |
Gale |
| Date Issued: |
February 7, 1978 |
| Application: |
05/785,631 |
| Filed: |
April 7, 1977 |
| Inventors: |
Gale; Preston L. (East Peoria, IL)
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| Assignee: |
Caterpillar Tractor Co. (Peoria, IL) |
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| U.S. Class: |
427/596 |
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| Abstract: |
a method of applying a wear-resistant composite coating to an article is disclosed which includes the steps of depositing a plurality of wear-resistant particles having a predetermined melting point along with a lower melting point element in solid form onto the surface of the article, focusably directing a coherent beam of electromagnetic energy thereon at a power density level sufficient to melt the element and a limited surface portion of the article while retaining the particles in substantially solid form, and removing the beam therefrom to allow solidification of the melted portion thereof into a matrix in which the wear-resistant particles are embedded. Advantageously this method provides a thin diffusion zone and a hardened zone underneath it to better support the coating. |
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