Mechanical Characterization and Electrochemical Corrosion Behaviour of Yttrium-Stabilized Zirconia (YSZ) Dual Layer Thermal Barrier Coating on SS 304 for Aerospace Applications
Varsha Ganesan, P. P. Sharvesh, S. Robin Divahar, Ajith Raj Rajendran
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Abstract
In high temperature aerospace applications, the protection of materials from degradation, corrosion and melting is critical. In this study, we focus on the development of yttrium-based YSZ zirconia on SS304 material, which aims to enhance their corrosion resistance and mechanical durability. This paper expands the application of ceramic coating, in particular the YSZ, SS304 substrates at thickness of 50 and 100 μm. The coating applied by the method of plasma spraying technique, and the post-coating tests are done to increase the performance for the material. Tensile testing, coating thickness measurement, pitting corrosion test, hardness test and wear test were conducted to obtain the effectiveness of the coating. Test results will help improving the thermal and mechanical properties, particularly zirconia-based ceramics making this coating a promising one for aerospace applications.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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