Abstract
Recently, molten salt corrosion of metallic alloys in concentrated solar power (CSP) industries is one of the important and unavoidable issues among others. In this investigation, the role of inhibitor (i.e., Mg powder) on the hot corrosion behavior of Inconel 617 superalloy in molten chloride salts mixture has been examined through immersion corrosion test method and electron microscopic analysis. Post corrosion observations revealed that Cr at the grain boundary is preferentially depleted, which leads to severe grain boundary corrosion. By addition of 1 wt% Mg powder (as inhibitor), the corrosion rate (derived through percolation depth) was observed to be remarkably minimized by ~ 40% compared with the immersion test without Mg powder addition. The notable increase in corrosion resistance by the addition of Mg powder could be attributed to the reduction of oxidizing impurities in the molten salts mixture, which is considered to be the main culprit for the corrosion promoter.
Similar content being viewed by others
References
Zervos A, Ed. Renewable 2019: Global Status Report, 2019. Paris: REN21 Secretariat, 2016, 107-109. ISBN 978-3-9818911-7-1
Klein S J W, and Whalley S, Energy Policy 79 (2015) 127. https://doi.org/10.1016/j.enpol.2015.01.007
Bijarniya J P, Sudhakar K, and Baredar P, Renew. Sust. Energ. Rev. 63 (2016) 593. https://doi.org/10.1016/j.rser.2016.05.064
Liu M, Tay N H S, Bell S, Belusko M, Jacob R, Will G, Saman W, and Bruno F, Renew. Sust. Energ. Rev. 53 (2016) 1411. https://doi.org/10.1016/j.rser.2015.09.026
Vignarooban K, Xu X, Arvay A, Hsu K, and Kannan A M, Appl. Energy 146 (2015) 383. https://doi.org/10.1016/j.apenergy.2015.01.125
Ding W, Bonk A, and Bauer T, Front. Chem. Sci. Eng. 12 (2018) 564.
Myers P D Jr, and Goswami D Y, Appl. Therm. Eng. 109 (2016) 889. https://doi.org/10.1016/j.applthermaleng.2016.07.046
Mehos M, Turchi C, Gomez-Vidal JC, Wagner M, Ma Z, Ho C, Kolb W, Andraka C & Kruizenga A, Concentrating Solar Power Gen3 Demonstration Roadmap. National Renewable Energy Laboratory Technical Report (2017) 1–127. Technical Report NREL/TP-5500–67464. www.nrel.gov
Gomez-Vidal J C, and Tirawat R, Sol. Energy Mater. Sol. Cells 157 (2016) 234. https://doi.org/10.1016/j.solmat.2016.05.052
Sarvghad M, Maher S D, Collard D, Tassan M, Will G, and Steinberg T A, Energy Storage Mater. 14 (2018) 179. https://doi.org/10.1016/j.ensm.2018.02.023
Sáncheza V E, Batuecas E, García A M, Mayo C, Díazc R, and Pérez F J, Sol. Energy 176 (2018) 688. https://doi.org/10.1016/j.solener.2018.10.083
Gonzalez M, Nithiyanantham U, Argibay E C, Bondarchuk O, Grosu Y, and Faik A, Sol. Energy Mater. Sol. Cells 203 (2019) 110172. https://doi.org/10.1016/j.solmat.2019.110172
Ding W, Shi H, Xiu Y, Bonk A, Weisenburger A, Jianu A, and Bauer T, Sol. Energy Mater. Sol. Cells 184 (2018) 22. https://doi.org/10.1016/j.solmat.2018.04.025
Indacochea J E, Smith J L, Litko K R, and Karell E J, J. Mater. Res. 14 (1999) 1990. https://doi.org/10.1557/JMR.1999.0268
Ding W, Shi H, Jianu A, Xiu Y, Bonk A, Weisenburger A, and Bauer T, Sol. Energy Mater. Sol. Cells 193 (2019) 298. https://doi.org/10.1016/j.solmat.2018.12.020
Ding W, and Bauer T, Engineering 7 (2021) 334. https://doi.org/10.1016/j.eng.2020.06.027
D’Souza B, Zhuo W, Yang Q, Leong A, and Zhang J, Corros. Sci. 187 (2021) 109483. https://doi.org/10.1016/j.corsci.2021.109483
Sun H, Wang J Q, Tang Z, Liu Y, and Wang C, Corros. Sci. 164 (2020) 108350. https://doi.org/10.1016/j.corsci.2019.108350
Diaz BLG, Olson L, Rodriguez MM, Fuentes R, Mercado HC & Gray J, High Temperature Electrochemical Engineering and Clean Energy Systems, J.S.C. acad. sci., 14 (2016) 11–14. https://scholarcommons.sc.edu/jscas/vol14/iss1/4
Sridharan K & Allen TR, Molten salts chemistry-from lab to applications, Chapter-12 (2013) 241–267. https://doi.org/10.1016/B978-0-12-398538-5.00012-3
Guo L, Liu Q, Yin H, Pan T J, and Tang Z, Corros. Sci. 166 (2020) 108473. https://doi.org/10.1016/j.corsci.2020.108473
Gill S K, Sure J, Wang Y, Layne B, He L, Mahurin S, Wishart J F, and Sasaki K, Corros. Sci. 179 (2021) 109105. https://doi.org/10.1016/j.corsci.2020.109105
Acknowledgements
Authors are thankful to the Director, CSIR-NML for providing the financial and equipment support to carry out the work under the i-PSG initiative as Project No: OLP-0399.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Pradhan, S.K., Jena, P.S.M., Chaithanya, P.V.S. et al. Enhancement of Molten Salt Corrosion Resistance of Ni-Based Superalloy Through Adding Inhibitor. Trans Indian Inst Met 77, 1323–1328 (2024). https://doi.org/10.1007/s12666-023-03234-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12666-023-03234-3