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Proceedings Paper

Laser surface alloying of steel with TiC
Author(s): S. Ariely; Menahem Bamberger; Helmut Huegel; Mark Geller
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Paper Abstract

Laser technology enables a specimen surface to be melted and alloyed without the substrate itself being heated, whereby a surface with special attributes is obtained while the properties of the substrate are unchanged. The surface of Armco iron, AISI 1045, and AISI 1095 steels were laser alloyed with TiC powder, using a CO2 laser of 2.5 kW maximum power. Optimal laser and powder feed parameters were established. Particles of TiC were injected into the molten surface layer, forming a composite material, steel + TiC. The microstructures were investigated metallographically. Some of the particles had partially melted during their passage through the laser beam and had re-solidified, forming small and fine dendrites. Surface hardness increased, mainly due to the presence of these undissolved TiC particles. A new mathematical model describing the alloying process, based on the equation of heat conductance, to the alloying process is presented.

Paper Details

Date Published: 13 August 1993
PDF: 9 pages
Proc. SPIE 1972, 8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine, (13 August 1993); doi: 10.1117/12.151106
Show Author Affiliations
S. Ariely, Technion--Israel Institute of Technology (Israel)
Menahem Bamberger, Technion--Israel Institute of Technology (Israel)
Helmut Huegel, Univ. of Stuttgart (Germany)
Mark Geller, Technion--Israel Institute of Technology (Israel)

Published in SPIE Proceedings Vol. 1972:
8th Meeting on Optical Engineering in Israel: Optoelectronics and Applications in Industry and Medicine
Moshe Oron; Itzhak Shladov; Yitzhak Weissman, Editor(s)

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