Paper Title:
Influence of Interlayer on the Corrosion Behavior of Multilayered WC-Ti1-xAlxN Coatings in Deaerated 3.5% Sodium Chloride Solution
  Abstract

Multilayered coatings of WC-Ti and WC-Ti1-xAlxN were deposited to form a wear- and corrosion-resistant surface. The cathodic arc deposition (CAD) method was used to deposit WC-Ti1- xAlxN coatings with variable Al content onto high speed steel (HSS). Three kinds of WC-Ti1-xAlxN coatings, each with and without interlayer (Ti/TiN), were prepared. The corrosion behaviors of WCTi1- xAlxN coatings in a deaerated 3.5% NaCl solution were investigated by galvanic corrosion test and potentiodynamic polarization test. The porosity of the coatings, both with and without interlayer, generally decreased with increasing Al content. The multilayer coating with a Ti/TiN interlayer was responsible for the increased corrosion resistance due to its lower porosity and higher adhesion strength than the multilayer coatings without interlayer.

  Info
Periodical
Materials Science Forum (Volumes 544-545)
Edited by
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
Pages
359-362
DOI
10.4028/www.scientific.net/MSF.544-545.359
Citation
J.H. Hong, S. H. Ahn, J. G. Kim, "Influence of Interlayer on the Corrosion Behavior of Multilayered WC-Ti1-xAlxN Coatings in Deaerated 3.5% Sodium Chloride Solution", Materials Science Forum, Vols. 544-545, pp. 359-362, 2007
Online since
May 2007
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$32.00
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