Paper Title:
Mechanical Property Analysis of Micro-Contact Resistance of Surface Coating
  Abstract

Mechanical property of coating under the micro-contact load such as impact and sliding wear significantly influence the reliability of surface coating. In order to research the influence, a contact model between the rigid multi-asperity surface and coating was found based on the G-W model in the background of Thermal Barrier Coatings(TBCs) used in aircraft engine blade. The distribution of stress in subsurface of the micro-contact process was analyzed based on the theories of contact mechanics and tribology with the elasto-plastic finite element method. The effect of coating thickness, elastic modulus, yield strength on the distribution of residual stress for TBCs was investigated. It conclude that primary reason of coating failure are cumulation of plastic deformation and excessive interfacial stress. The results are significant for studying the life and final spallation of TBC system and other coating.

  Info
Periodical
Edited by
Shengyi Li, Yingchun Liu, Rongbo Zhu, Hongguang Li, Wensi Ding
Pages
976-980
DOI
10.4028/www.scientific.net/AMM.34-35.976
Citation
Y. Q. Xu, L. L. Wang, F. H. Lin, "Mechanical Property Analysis of Micro-Contact Resistance of Surface Coating", Applied Mechanics and Materials, Vols. 34-35, pp. 976-980, 2010
Online since
October 2010
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Price
$32.00
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