Paper Title:
Influence of Surface Roughness on Evaluation of Stress Gradients in Coatings
  Abstract

Roughness influence on the residual stress gradient evaluation in the case of a grazing incidence X-ray diffraction setup is considered. In this geometry the surface roughness changes essentially the X-ray wave fields of the transmitted and diffracted beams inside the coatings and subsurface regions of bulk samples, and thus influences the refractive properties of the investigated sample area. In turn, the change in the refraction index enforces the re-scale of the informational depth and, consequently, the evaluated stress depth profile. The diffracted amplitude from the crystalline grain located beneath the surface is calculated. The surface roughness is shown to contribute into reconstruction of the real stress gradient profile of the coating.

  Info
Periodical
Edited by
Paolo Scardi and Cristy L. Azanza Ricardo
Pages
121-126
DOI
10.4028/www.scientific.net/MSF.681.121
Citation
A. Benediktovich, H. Guerault, I. Feranchuk, V. Uglov, A. Ulyanenkov, "Influence of Surface Roughness on Evaluation of Stress Gradients in Coatings", Materials Science Forum, Vol. 681, pp. 121-126, 2011
Online since
March 2011
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$32.00
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