Paper Title:
Investigation of Toughness and Wear Resistance of a-C/a-C:Cr Multilayer Coatings
  Abstract

Alternated a-C/a-C:Cr coatings were made by DC magnetron sputtering from graphite and Cr target in an argon discharge. Mechanical and tribological properties were measured by indentation, scratch and pin-on-disc test. The critical scratch load of a-C/a-C:Cr multilayer coatings for total failure is approach 100 N. The friction coefficient remains within the range of 0.08-0.1 at loads between 10 and 40 N during a pin-on-disc wear test. The wear depth only reaches 0.6 μm after a one hour wear test. The greater compliance and fracture toughness of the a-C/a-C:Cr multilayer coatings allows greater strains or strain energy to be stored before coating failure, and hence significantly improves wear resistance

  Info
Periodical
Edited by
Dongming Guo, Tsunemoto Kuriyagawa, Jun Wang and Jun’ichi Tamaki
Pages
731-736
DOI
10.4028/www.scientific.net/KEM.329.731
Citation
K. J. Ma, H. H. Chien, C. L. Chao, "Investigation of Toughness and Wear Resistance of a-C/a-C:Cr Multilayer Coatings", Key Engineering Materials, Vol. 329, pp. 731-736, 2007
Online since
January 2007
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