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Proceedings Paper

Effects of interface morphology and TGO thickness on residual stress of EB-PVD thermal barrier coatings
Author(s): Jianwei Chen; Yang Zhao; Jian Ma
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Paper Abstract

The residual stress of electron beam-physical vapor deposition (EB-PVD) thermal barrier coatings (TBC) is complex and difficult to be obtained. In this paper, the interface morphology of TBCs subjected to cyclic heating and cooling was observed by SEM. Based on the thermal elastic-plastic finite method, corresponding interface model of TBCs was established. The residual stress of EB-PVD TBCs with different interface morphologies and TGO thicknesses was calculated using the FE method without regard to the presence of cracks and defects. The result shows that the distribution of residual stress is significantly affected by the interface morphology, and the growth of TGO also has influence on the residual stress of TC and TGO.

Paper Details

Date Published: 1 April 2015
PDF: 7 pages
Proc. SPIE 9432, Behavior and Mechanics of Multifunctional Materials and Composites 2015, 943212 (1 April 2015); doi: 10.1117/12.2084328
Show Author Affiliations
Jianwei Chen, Shandong Academy of Sciences (China)
Yang Zhao, Shandong Academy of Sciences (China)
Ctr. of NDT Engineer and Techinque in Shandong (China)
Jian Ma, Shandong Academy of Sciences (China)

Published in SPIE Proceedings Vol. 9432:
Behavior and Mechanics of Multifunctional Materials and Composites 2015
Nakhiah C. Goulbourne, Editor(s)

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