Corrosion performance of Ni-based structural alloys for applications in molten-salt based energy systems: experiment & numerical validation
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Date
2021-09
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
The molten salt corrosion performance of a Y2O3-strengthened Ni-Cr alloy (MA754®) designed for high temperature applications (> 750 °C) was compared to purpose-designed Ni-Mo-Cr molten-salt resistant alloys (GH3535, HASTELLOY-N®). The significant material mass loss of MA754® alloy is attributed to its higher Cr-content. However, Y2O3 dispersoids are shown to play only a minor role in the corrosion performance of this oxide-dispersion-strengthened (ODS) alloy. The current result, thus, points to the possibility for the development of low Cr-content ODS alloys that combines the high-temperature properties of ODS MA754® alloy with good molten salt corrosion resistance of well-established GH3535 and HASTELLOY-N® alloys. Crown Copyright © 2021 Published by Elsevier Ltd
Description
Keywords
Salts, Corrosion, Alloys, Nickel, Energy systems, Experimental data, Mass transfer
Citation
Lee, M., Muránsky, O., Karatchevtseva, I., Huang, H., & Laws, K. J. (2021). Corrosion performance of Ni-based structural alloys for applications in molten-salt based energy systems: experiment & numerical validation. Corrosion Science, 190, 109607. doi:10.1016/j.corsci.2021.109607