Paper Title:
Fabrication of SiC Particulates Reinforced MoSi2 Composite Coating by Laser Cladding
  Abstract

In order to improve wear resistance of carbon steel, laser cladding experiments were carried out using a 3kW continuous wave CO2 laser. The diameter of the laser beam was 3-5mm, the scanning velocity was 3-10mm/s, and the laser output power was 1.0-1.3kW. The experimental results showed that MoSi2/SiCP composites coating could be in-situ synthesized from mixture powders of molybdenum, silicon and SiC by laser cladding. A good metallurgical bond between the coating and the substrate could be achieved. The microstructures of the coating were mainly composed of MoSi2, SiC and FeSiMo phases. The average microhardness of the coating was about HV0.21300, about 6.0 times larger than that of steel substrate.

  Info
Periodical
Key Engineering Materials (Volumes 373-374)
Main Theme
Edited by
M.K. Lei, X.P. Zhu, K.W. Xu and B.S. Xu
Pages
304-307
DOI
10.4028/www.scientific.net/KEM.373-374.304
Citation
S. Yang, M. R. Wang, T. Gong, W. J. Liu, "Fabrication of SiC Particulates Reinforced MoSi2 Composite Coating by Laser Cladding", Key Engineering Materials, Vols. 373-374, pp. 304-307, 2008
Online since
March 2008
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$32.00
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