Paper Title:
Wear Resistance of Plasma-Sprayed Al2O3-TiO2 Nanocoatings
  Abstract

Wear resistance of Al2O3-8wt.%TiO2 coatings plasma-sprayed using nanopowders was investigated. Four types of nanostructured Al2O3-8wt.%TiO2 powders were plasma-sprayed on a low-carbon steel substrate by using different critical plasma spray parameters (CPSP). The coatings consisted of completely melted and partially melted regions. The hardness of the coatings increased with increasing CPSP, while the wear resistance was the highest for the coating sprayed with the lowest CPSP. The main wear mechanism was a delamination mode in the coating sprayed with the high CPSP, but was changed to an abrasive mode in the coating sprayed with the low CPSP. According to this change in the wear mechanism, the wear resistance was the best in the coating sprayed with lowest CPSP, while its hardness was lowest.

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
641-644
DOI
10.4028/www.scientific.net/KEM.345-346.641
Citation
J. H. Ahn, E. P. Song, S. H. Lee, N. J. Kim, "Wear Resistance of Plasma-Sprayed Al2O3-TiO2 Nanocoatings", Key Engineering Materials, Vols. 345-346, pp. 641-644, 2007
Online since
August 2007
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Price
$35.00
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