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Proceedings Paper

Surface Alloying Using High-Power Continuous Lasers
Author(s): Peter G. Moore; Leslie S. Weinman
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Paper Abstract

High power continuous lasers can be used to modify the chemical composition of alloy surfaces to depths ranging from 0.01 to 1 mm. Such coatings exhibit potential advantages over more conventional coating techiliques in terms of the integrity of the coating, the character of the interface between the surface alloy and the substrate, and an increased control over the composition of the coating. The processing conditions used in laser surface alloy ing are selected in order to facilitate the mixing of the alloying material with molten substrate material. The manufacture of chromium steel suiface alloys on low carbon steel substrates is described in terms of this mixing and the extension of these results to other systems is discussed. Auger and electron microprobe analyses of chromium steel surface alloys have been performed and indicate that a high degree of compositional uniformity can be obtained with proper control of the processing. The various types of metallurgical and morphological structures are described.

Paper Details

Date Published: 24 January 1980
PDF: 6 pages
Proc. SPIE 0198, Laser Applications in Materials Processing, (24 January 1980);
Show Author Affiliations
Peter G. Moore, U.S. Naval Research Laboratory (United States)
Leslie S. Weinman, Honeywell, inc. (United States)

Published in SPIE Proceedings Vol. 0198:
Laser Applications in Materials Processing
John F. Ready, Editor(s)

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