{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T07:00:30Z","timestamp":1783494030802,"version":"3.55.0"},"reference-count":23,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T00:00:00Z","timestamp":1753056000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2021YFB3700602"],"award-info":[{"award-number":["2021YFB3700602"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The suitability of 347H stainless steel (SS347H) for chloride salt environments is critical in selecting materials for next-generation concentrated solar power (CSP) systems. This study investigated the corrosion behavior of SS347H in a ton-scale purification system with continuously flowing chloride salt under three conditions: exposure to NaCl-KCl-MgCl2 molten salt vapor, immersion in molten salt, and at the molten salt surface interface. Results revealed that corrosion was most severe in the molten salt vapor, where HCl steam facilitated Cl\u2212 reactions with Fe and Cr in the metal, causing dissolution and forming deep corrosion pits. At the interface, liquid Mg triggered displacement reactions with Fe2+\/Cr2+ ions in the salt, depositing Fe and Cr onto the surface, which reduced corrosion intensity. Within the molten salt, Mg\u2019s purification effect minimized impurity-induced corrosion, resulting in the least damage. In all cases, the primary corrosion mechanism involves the dissolution of Fe and Cr, with the formation of minor MgO. These insights provide valuable guidance for applying 347H stainless steel in chloride salt environments.<\/jats:p>","DOI":"10.3390\/ma18143412","type":"journal-article","created":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T10:35:31Z","timestamp":1753094131000},"page":"3412","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Corrosion Behavior of 347H Stainless Steel in NaCl-KCl-MgCl2 Molten Salt: Vapor, Liquid, and Interface Comparison"],"prefix":"10.3390","volume":"18","author":[{"given":"Zhiwen","family":"Liu","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering, Shanghai University, Shanghai 200072, China"},{"name":"Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3683-7665","authenticated-orcid":false,"given":"Huigai","family":"Li","sequence":"additional","affiliation":[{"name":"College of Materials Science and Engineering, Shanghai University, Shanghai 200072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanjie","family":"Peng","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luyan","family":"Sun","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianping","family":"Liang","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,21]]},"reference":[{"key":"ref_1","first-page":"102813","article-title":"Progress in technology advancements for next generation concentrated solar power using solid particle receivers","volume":"54","author":"Khan","year":"2022","journal-title":"Sustain. 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