Publication

Abstract : This paper highlights the high temperature high cycle fatigue and accelerated creep properties of thermal barrier coated (TBC)Superni C263 alloy used as candidate material in combustion chamber liner of aero engines. Results reveal that the endurance limit in fatigue and the life of TBC coated composite under accelerated creep conditions are substantially high than those of the sub-strate material. Fractographic features at high stresses under fatigue was intergranular cleavage where as those at low stresses were transgranular and ductile in nature. Delamination of the bond coat and spallation of the TBC at high stresses during fatigue was evident.