ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The preparation technologies of thermal barrier coating by the Electron Beam Physical VaporDeposition (EBPVD) technique were briefly introduced in this paper. And design principal ofthermal barrier coating is discussed, at the same time the selection of raw material was also takeninto account. On the basis of several assumed perfect conditions, a reasonable Finite ElementAnalysis (FEA) physical model was built up in order to exactly describe the whole depositionprocess. Taking the advantage of the large-scale commercial software of FEA, the distribution ofresidual stress and the possible displacement tendency were obtained. The analysis results show that:with the increasing substrate preheating temperature, the inter-laminar shear stress increases but theaxial residual stress decreases. And the probability of cracking after de-bonding tends to enhance asthe thickness of deposition coating is increased. Also it is verified that the FE model has producedlittle numerical error
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.1276.pdf
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