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Experimental and numerical investigation on gas turbine blade with the application of thermal barrier coatings

Aabid, Abdul and Jyothi, J and Zayan, Jalal Mohammed and Khan, Sher Afghan (2019) Experimental and numerical investigation on gas turbine blade with the application of thermal barrier coatings. Advances in Materials Research, 8 (4). pp. 275-293. ISSN 2234-0912 E-ISSN 2234-179X

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Abstract

The engine parts material used in gas turbines (GTs) should be resistant to high-temperature variations. Thermal barrier coatings (TBCs) for gas turbine blades are found to have a significant effect on prolonging the life cycle of turbine blades by providing additional heat resistance. This work is to study the performance of TBCs on the high-temperature environment of the turbine blades. It is understood that this coating will increase the lifecycles of blade parts and decrease maintenance and repair costs. Experiments were performed on the gas turbine blade to see the effect of TBCs in different combinations of materials through the air plasma method. Three-layered coatings using materials INCONEL 718 as base coating, NiCoCrAIY as middle coating, and La2Ce2O7 as the top coating was applied. Finite element analysis was performed using a two-dimensional method to optimize the suitable formulation of coatings on the blade. Temperature distributions for different combinations of coatings layers with different materials and thickness were studied. Additionally, three-dimensional thermal stress analysis was performed on the blade with a commercial code. Results on the effect of TBCs shows a significant improvement in thermal resistance compared to the uncoated gas turbine blade.

Item Type: Article (Journal)
Additional Information: 7395/78803
Uncontrolled Keywords: Materials; Turbine blade; Coatings; Thermal analysis; Finite element method; Plasma spray
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Prof. Dr. Sher Afghan Khan
Date Deposited: 25 Feb 2020 20:23
Last Modified: 25 Feb 2020 20:23
URI: http://irep.iium.edu.my/id/eprint/78803

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