Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating

This paper presents the results of a study of the microstructure and oxidation behavior of thermal barrier coating (TBC) with air plasma sprayed (APS) yttria-stabilized zirconia (YSZ) top coat and CoNiCrAlY bond coat deposited using two different spraying techniques, low pressure plasma spray (LPPS)...

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Main Authors: Manap, A., Seo, D., Ogawa, K.
Format: Article
Language:English
Published: 2017
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spelling my.uniten.dspace-34462018-01-23T01:11:49Z Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating Manap, A. Seo, D. Ogawa, K. Cold spray Inorganic coatings This paper presents the results of a study of the microstructure and oxidation behavior of thermal barrier coating (TBC) with air plasma sprayed (APS) yttria-stabilized zirconia (YSZ) top coat and CoNiCrAlY bond coat deposited using two different spraying techniques, low pressure plasma spray (LPPS) and cold spray (CS). The objective is to investigate the thermally grown oxide (TGO) thickness and oxide scale composition of TBC subjected to isothermal oxidation and creep tests at 900 °C by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectrometry (EDX) analyses in order to evaluate the reliability of the CS technique. It was found that the TGO thicknesses for TBC with CS bond coats were smaller and the TGO was composed of mainly alumina with little or no mixed oxides. TGO growth rate was also affected by the applied stress. Smaller TGO thicknesses were observed for the noncreep TBC for both CS and LPPS bond coats. Overall findings indicate that the oxidation behavior of the TBC with CS bond coat is superior compared to that of the TBC with LPPS bond coat. © (2011) Trans Tech Publications. 2017-10-26T08:13:15Z 2017-10-26T08:13:15Z 2011 Article www.scientific.net/MSF.696.324 en Materials Science Forum Volume 696, 2011, Pages 324-329 3rd International Symposium on High-Temperature Oxidation and Corrosion, ISHOC-10; Zushi; Japan; 8 November 2010 through 11 November 2010; Code 86768
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language English
topic Cold spray
Inorganic coatings
spellingShingle Cold spray
Inorganic coatings
Manap, A.
Seo, D.
Ogawa, K.
Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
description This paper presents the results of a study of the microstructure and oxidation behavior of thermal barrier coating (TBC) with air plasma sprayed (APS) yttria-stabilized zirconia (YSZ) top coat and CoNiCrAlY bond coat deposited using two different spraying techniques, low pressure plasma spray (LPPS) and cold spray (CS). The objective is to investigate the thermally grown oxide (TGO) thickness and oxide scale composition of TBC subjected to isothermal oxidation and creep tests at 900 °C by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectrometry (EDX) analyses in order to evaluate the reliability of the CS technique. It was found that the TGO thicknesses for TBC with CS bond coats were smaller and the TGO was composed of mainly alumina with little or no mixed oxides. TGO growth rate was also affected by the applied stress. Smaller TGO thicknesses were observed for the noncreep TBC for both CS and LPPS bond coats. Overall findings indicate that the oxidation behavior of the TBC with CS bond coat is superior compared to that of the TBC with LPPS bond coat. © (2011) Trans Tech Publications.
format Article
author Manap, A.
Seo, D.
Ogawa, K.
author_facet Manap, A.
Seo, D.
Ogawa, K.
author_sort Manap, A.
title Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
title_short Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
title_full Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
title_fullStr Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
title_full_unstemmed Characterization of thermally grown oxide on cold sprayed CoNiCrAlY bond coat in thermal barrier coating
title_sort characterization of thermally grown oxide on cold sprayed conicraly bond coat in thermal barrier coating
publishDate 2017
_version_ 1644493539552264192
score 13.222552