Towards Understanding the Oxide Evolution in Inconel 740H and Haynes 282 in Ambient Pressure Steam Oxidation

Gore, P and Gosain, OP and Singh, MP and Basu, B and Chattopadhyay, K (2022) Towards Understanding the Oxide Evolution in Inconel 740H and Haynes 282 in Ambient Pressure Steam Oxidation. In: Oxidation of Metals .

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Abstract

Advanced ultra-supercritical (AUSC) power plants with the capacity to produce cleaner and efficient energy require materials compatible for operating at temperature and pressure of 750 °C and 350 bar, respectively. Among various structural materials, Inconel 740H and Haynes 282 are two candidate alloys for the AUSC plant. The present study was designed to investigate the ambient pressure steam oxidation of these alloys at 700 °C by exposing them for 100, 250 and 500 h. Quantitative evaluation of both the alloys indicates a comparable and a significantly low parabolic oxidation growth rate (~ 10–8 mg2 cm−4 h−1). The degradation behaviour, in particular, the oxide growth, is dominated by the Cr2O3-rich outer layer and internal oxidation region rich with oxides of Al and Ti. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Item Type:	Journal Article
Publication:	Oxidation of Metals
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer
Keywords:	Alloys; Growth rate; Internal oxidation; Steam power plants, Advanced ultra-supercritical power plant; Ambient pressures; Hy 282; IN 740h; Inconel; Quantitative evaluation; Steam oxidation; Supercritical; Temperature and pressures; Ultra-supercritical power plants, Titanium oxides
Department/Centre:	Division of Chemical Sciences > Materials Research Centre Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 May 2022 10:54
Last Modified:	18 May 2022 10:54
URI:	https://eprints.iisc.ac.in/id/eprint/71858

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