Paper Title:
A Special Method to Evaluate the Strong Adhesion between Brittle Coating and Ductile Substrate
  Abstract

The evaluation of the interfacial adhesion of coating system has always been a rough task. In this paper, a special testing method of cross-sectional indentation is applied on a model coating system, i.e. electroplated chromium on a steel substrate which is generally regarded as an example of materials pair with strong adhesion. Based on fractography analysis with SEM and interfacial stress simulation with FEM, it is found that interfacial shear stress may induce coating spalling. More interestingly, spalling location is sensitive to substrate pretreatment process. This shows the feasibility of cross-sectional indentation to distinguish interfacial strength at a high level.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1749-1752
DOI
10.4028/www.scientific.net/KEM.353-358.1749
Citation
K. Zhang, Q. Peng, G. N. Chen, "A Special Method to Evaluate the Strong Adhesion between Brittle Coating and Ductile Substrate", Key Engineering Materials, Vols. 353-358, pp. 1749-1752, 2007
Online since
September 2007
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Price
$32.00
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