High Temperature Behavior of Superalloy under Simulating Gas Turbine Environment
Chella Ganesh. D1, Adamkhan. M2, Winowlin Jappes JT3
1Chella Ganesh D, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
2Adamkhan M, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
3Winowlin Jappes JT, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
Manuscript received on 24 November 2019 | Revised Manuscript received on 18 December 2019 | Manuscript Published on 30 December 2019 | PP: 896-898 | Volume-9 Issue-1S4 December 2019 | Retrieval Number: A10651291S419/19©BEIESP | DOI: 10.35940/ijeat.A1065.1291S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: On prolonged exposure of superalloys at elevated temperature, the surface degradation is prone to involve. In this study two nickel – based superalloys, Inconel617 and Hastelloy are the materials used to perform surface studies. The behaviors of superalloys at elevated temperatures are studied with and without salt mixture. Samples are exposed at 900° and 1000°C for a period of fifty hours. From the investigation, the cumulative mass changes per unit area are calculated with reference to the proportion of surface scale formation. The substantial role of the alloying elements is analyzed through SEM and XRD analysis. The Hastelloy has better resistance towards corrosion and oxidation resistance than Inconel617. The predominant oxides formed during the exposure at high temperature have a major contribution towards the protection of the samples.
Keywords: Superalloys, Oxidation, Corrosion, Molten Salt, SEM.
Scope of the Article: Mechanical Maintenance