Paper Title:
Effects of Rare Earth on Electrochemical Corrosion Behavior of Graphite-Like Carbon Coatings
  Abstract

The corrosion behavior of graphite-like carbon (GLC) coating in sea water was studied and yttrium and cerium were doped into it by using mosaic in the target of magnetron sputtering process to improve its corrosion resistance. The result shows that the GLC coating characterizes typical underfilm electrochemical corrosion in sea water. Yttrium added in chromium interlayer or yttrium and cerium added in the surface layer of the GLC coating can apparently improve the microstructure result in significantly decrease the corrosive current density. As the modifications of Y in interlayer and Y, Ce and Ta in top layer are composed together to form complex GLC coating, the wear resistance and the antifriction is dramatically improved, the corrosive current density is only one-twenty fourth of that of the commercial C/Cr GLC coating.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
1978-1983
DOI
10.4028/www.scientific.net/AMR.199-200.1978
Citation
Z. P. Wang, P. B. Chen, Z. W. Ma, J. T. Yu Wen, "Effects of Rare Earth on Electrochemical Corrosion Behavior of Graphite-Like Carbon Coatings", Advanced Materials Research, Vols. 199-200, pp. 1978-1983, 2011
Online since
February 2011
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$32.00
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