We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Thermal Shock Resistance of APS 8YSZ Thermal Barrier Coatings on Titanium Alloy.
- Authors
Zeng, Shuibing; Liu, Yangjia; Fan, Xizhi; Huang, Wenzhi; Gu, Lijian; Zou, Binglin; Chen, Xiaolong; Khan, Zuhair; Zhu, Ling; Yang, Daowu; Cao, Xueqiang
- Abstract
Thermal barrier coatings (TBCs) with a typical 8YSZ ceramic top coat and CoNiCrAlY bond coat were deposited on titanium alloy substrate (Ti-6Al-4V in wt.%) by air plasma spraying. Thermal insulation and thermal shock resistance of the TBCs at different temperatures as well as their failure behavior were investigated. The results showed that the test temperature had a significant effect on thermal shock life of the TBCs. Failure of the TBCs systems was caused by the formation of crack, bond coat oxidation and elemental diffusion. The vertical cracks induced by thermal shock cycles were probably responsible for the enhancement in thermal shock resistance of the TBCs. Furthermore, elemental diffusion had a great effect on the acceleration of the TBCs failure. The TBCs could provide a good thermal protection for the titanium alloy substrate.
- Subjects
TITANIUM alloys; THERMAL barrier coatings; THERMAL insulation; PLASMA spraying; THERMAL conductivity
- Publication
Journal of Thermal Spray Technology, 2012, Vol 21, Issue 2, p335
- ISSN
1059-9630
- Publication type
Article
- DOI
10.1007/s11666-011-9721-2