Analysis and simulation of FGM thermal barrier coatings hot burner testing

Michael Gasik, Akira Kawasaki

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

For FGM thermal barrier coatings thermal-mechanical fatigue due to temperature cycling is one of the critical parameters which determine the lifetime of the TBC. In Tohoku University, a method known as "hot burner test" has been developed and was implemented into the standard JIS H 7851. For further optimization of the testing conditions and selection of the parameters for comparison of different test results knowledge of temperature and heat flux inside the test jig is necessary. FEM analysis of the heat flux and temperature inside the 14 mm diameter test stainless steel jig has been performed. Homogenous YSZ top coat with NiCrAlY bondcoat as well as FGM TBC with different gradation profiles were compared. Distributions of the temperature and heat flux are critical at the edges of the test piece and thermocouples locations, which must be taken into account when comparing test data for coatings with rather different composition and structure. The largest stress gradients develop at the ceramic-metal interface (duplex) and near the edges of the TBC.

本文言語English
ホスト出版物のタイトルMultiscale, Multifunctional and Functionally Graded Materials
出版社Trans Tech Publications Ltd
ページ79-84
ページ数6
ISBN(印刷版)0878493077, 9780878493074
DOI
出版ステータスPublished - 2010 1 1
イベント10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs - Sendai, Japan
継続期間: 2008 9 222008 9 25

出版物シリーズ

名前Materials Science Forum
631-632
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other10th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials, MM and FGMs
CountryJapan
CitySendai
Period08/9/2208/9/25

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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