Accelerated creep resistance of thermal barrier coated superalloy

Ray, Ashok K and Das, D K (2006) Accelerated creep resistance of thermal barrier coated superalloy. Materials Letters, 60 (25-26). pp. 3019-3022.

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This paper deals with accelerated creep properties of thermal barrier coated (TBC) Superni C263 alloy used as a candidate material in combustion chamber of aero engines. Results reveal that the life of the TBC composite under accelerated creep is substantially higher compared to that of the bare substrate. The mode of fracture in the substrate at very high stresses was transgranular whereas that at low stresses was intergranular. Delamination of bond coat, oxidation of the substrate and spallation of the ceramic layer were evident at very high stress. It was evident that the substrate has negligible estimated rupture strength after 10,000 h of service exposure

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Thermal barrier coating; Substrate; Creep; Transgranular; Intergranular; Spallation; Oxidation; Delamination
Divisions:Material Science and Technology
ID Code:584
Deposited By:Sahu A K
Deposited On:01 Jun 2010 15:31
Last Modified:08 Feb 2012 14:45

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