Residual stresses in thick, nonhomogeneous coatings

Author： Kroupa F.  

Publisher： Springer Publishing Company

ISSN： 1059-9630

Source： Journal of Thermal Spray Technology, Vol.6, Iss.3, 1997-09, pp. : 309-319

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Abstract

Residual macrostresses in thick, nonhomogeneous planar coatings are investigated theoretically using the methods of the isotropic theory of elasticity. The dependence of the elastic properties and of the sources of residual stresses on the coordinate perpendicular to the interface is considered. The results can be applied to thick graded or sandwich coatings. A simplification of the results for the cases of homogeneous and thin coatings is shown. Some differences for coatings on cylindrical and spherical surfaces are also mentioned.

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