Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt
This study aims to evaluate the corrosion behavior of AISI 316L, 321H, and 347H stainless steels in Solar salt (60 % NaNO₃ + 40 % KNO₃) and a ternary molten salt (52 % NaNO₃ + 35 % KNO₃ + 13 % LiNO₃) at 580 °C. The importance of this work lies in understanding corrosion mechanisms and optimizing sal...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025001392 |
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| author | J. Chaves M.I. Lasanta G. García-Martín M.T. de Miguel F.J. Pérez |
| author_facet | J. Chaves M.I. Lasanta G. García-Martín M.T. de Miguel F.J. Pérez |
| author_sort | J. Chaves |
| collection | DOAJ |
| description | This study aims to evaluate the corrosion behavior of AISI 316L, 321H, and 347H stainless steels in Solar salt (60 % NaNO₃ + 40 % KNO₃) and a ternary molten salt (52 % NaNO₃ + 35 % KNO₃ + 13 % LiNO₃) at 580 °C. The importance of this work lies in understanding corrosion mechanisms and optimizing salt compositions for improved material durability and thermal performance. Results showed that 347H exhibited the lowest corrosion rates, 0.035 mm/y in Solar salt and 0.027 mm/y in ternary salt, outperforming 316L and 321H in both environments. The ternary salt demonstrated a higher thermal operating range (373.23 °C vs. 312.28 °C for Solar salt), offering potential advantages for CSP applications. |
| format | Article |
| id | doaj-art-1fc9ce477eea4737ba4ebc7922a02873 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-1fc9ce477eea4737ba4ebc7922a028732025-01-26T05:04:46ZengElsevierResults in Engineering2590-12302025-03-0125104051Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar saltJ. Chaves0M.I. Lasanta1G. García-Martín2M.T. de Miguel3F.J. Pérez4Corresponding author.; Chemical and Materials Engineering Department. Complutense University of Madrid, Madrid, SpainChemical and Materials Engineering Department. Complutense University of Madrid, Madrid, SpainChemical and Materials Engineering Department. Complutense University of Madrid, Madrid, SpainChemical and Materials Engineering Department. Complutense University of Madrid, Madrid, SpainChemical and Materials Engineering Department. Complutense University of Madrid, Madrid, SpainThis study aims to evaluate the corrosion behavior of AISI 316L, 321H, and 347H stainless steels in Solar salt (60 % NaNO₃ + 40 % KNO₃) and a ternary molten salt (52 % NaNO₃ + 35 % KNO₃ + 13 % LiNO₃) at 580 °C. The importance of this work lies in understanding corrosion mechanisms and optimizing salt compositions for improved material durability and thermal performance. Results showed that 347H exhibited the lowest corrosion rates, 0.035 mm/y in Solar salt and 0.027 mm/y in ternary salt, outperforming 316L and 321H in both environments. The ternary salt demonstrated a higher thermal operating range (373.23 °C vs. 312.28 °C for Solar salt), offering potential advantages for CSP applications.http://www.sciencedirect.com/science/article/pii/S2590123025001392Molten saltsStainless steelHot corrosionSEMXRDHigh temperature corrosion |
| spellingShingle | J. Chaves M.I. Lasanta G. García-Martín M.T. de Miguel F.J. Pérez Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt Results in Engineering Molten salts Stainless steel Hot corrosion SEM XRD High temperature corrosion |
| title | Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt |
| title_full | Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt |
| title_fullStr | Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt |
| title_full_unstemmed | Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt |
| title_short | Degradation mechanism of AISI 316L, 321H, and 347H alloys in ternary molten salt vs solar salt |
| title_sort | degradation mechanism of aisi 316l 321h and 347h alloys in ternary molten salt vs solar salt |
| topic | Molten salts Stainless steel Hot corrosion SEM XRD High temperature corrosion |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025001392 |
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