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In this work, a code-oriented, systematic and technology-agnostic screening of candidate coating systems was performed to assess their chemical compatibility with liquid lead under representative and controlled conditions. Different coating technologies and material systems were investigated. Part I of the work covers atmospheric plasma spraying, high-velocity oxy-fuel spraying, and cold gas spray of Al-rich austenitic and ferritic alloys, and chrome electrodeposition. The results show that, while Al-rich metallic coatings can effectively protect the underlying substrates under the investigated conditions, Cr-based materials studied here cannot. Such an outcome provides a comparative basis for the down-selection of coating technologies for LFR components.<\/jats:p>","DOI":"10.3390\/ma19183952","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T16:06:51Z","timestamp":1790006811000},"page":"3952","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Candidate Coatings for Lead Fast Reactor Components: A Systematic Screening of Liquid-Lead Compatibility\u2014Part I"],"prefix":"10.3390","volume":"19","author":[{"given":"Andrea","family":"Ventrella","sequence":"first","affiliation":[{"name":"<i>new<\/i>cleo S.p.A., Via Giuseppe Galliano 27, 10129 Torino, TO, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"conceptualization","vocabulary":"credit"},{"role":"methodology","vocabulary":"credit"},{"role":"validation","vocabulary":"credit"},{"role":"resources","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"writing-review-editing","vocabulary":"credit"},{"role":"project-administration","vocabulary":"credit"},{"role":"supervision","vocabulary":"credit"}]},{"given":"Francesca","family":"Bussi","sequence":"additional","affiliation":[{"name":"<i>new<\/i>cleo S.p.A., Via Giuseppe Galliano 27, 10129 Torino, TO, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"}]},{"given":"Daniele","family":"Cico","sequence":"additional","affiliation":[{"name":"<i>new<\/i>cleo S.p.A., Via Giuseppe Galliano 27, 10129 Torino, TO, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"},{"role":"writing-original-draft","vocabulary":"credit"},{"role":"visualization","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"}]},{"given":"Francesca","family":"Ecclesia","sequence":"additional","affiliation":[{"name":"<i>new<\/i>cleo S.p.A., Via Giuseppe Galliano 27, 10129 Torino, TO, Italy"}],"role":[{"vocabulary":"crossref","role":"author"},{"role":"formal-analysis","vocabulary":"credit"},{"role":"investigation","vocabulary":"credit"},{"role":"data-curation","vocabulary":"credit"}]},{"given":"Mattia","family":"Salvi","sequence":"additional","affiliation":[{"name":"<i>new<\/i>cleo S.p.A., C.R. 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Energy"},{"key":"ref_2","unstructured":"Cinotti, L., Briger, P., and Grasso, G. (2026, August 31). Simplification, the Atout of LFR-AS-200. Available online: https:\/\/inis.iaea.org\/records\/qjmfh-a1b34."},{"key":"ref_3","unstructured":"Caramello, M., and Nandez, R. (2026, August 31). Development and Implementation of the Commercial EAGLES-300 Program. Available online: https:\/\/conferences.iaea.org\/event\/408\/contributions\/37545\/."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1016\/j.nucengdes.2018.07.031","article-title":"Design of SEALER, a very small lead-cooled reactor for commercial power production in off-grid applications","volume":"338","author":"Wallenius","year":"2018","journal-title":"Nucl. Eng. Des."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1007\/s10512-024-01036-4","article-title":"Lessons learned from the experience of operating lead-bismuth nuclear power reactors","volume":"134","author":"Troyanov","year":"2023","journal-title":"At. Energy"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"100920","DOI":"10.1016\/j.pmatsci.2022.100920","article-title":"Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors","volume":"126","author":"Gong","year":"2022","journal-title":"Prog. Mater. Sci."},{"key":"ref_7","unstructured":"(2026, July 15). GEneration iv Materials MAturity | GEMMA | Project | Fact Sheet | H2020. CORDIS | European Commission. Available online: https:\/\/cordis.europa.eu\/project\/id\/755269."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1016\/j.jnucmat.2008.02.043","article-title":"Liquid metal embrittlement of T91 and 316L steels by heavy liquid metals: A fracture mechanics assessment","volume":"377","author":"Auger","year":"2008","journal-title":"J. Nucl. Mater."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"284","DOI":"10.1016\/j.jnucmat.2011.04.047","article-title":"Influence of liquid lead and lead\u2013bismuth eutectic on tensile, fatigue and creep properties of ferritic\/martensitic and austenitic steels for transmutation systems","volume":"415","author":"Gorse","year":"2011","journal-title":"J. Nucl. Mater."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"106443","DOI":"10.1016\/j.engfailanal.2022.106443","article-title":"Mechanical behavior in liquid lead of Al2O3 coated 15-15Ti steel and an Alumina-Forming Austenitic steel designed to mitigate their corrosion","volume":"139","author":"Serre","year":"2022","journal-title":"Eng. Fail. Anal."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Litovchenko, I., Almaeva, K., Polekhina, N., Akkuzin, S., Linnik, V., Moskvichev, E., Chernov, V., and Leontyeva-Smirnova, M. (2022). The Microstructure and Mechanical Properties of Ferritic-Martensitic Steel EP-823 after High-Temperature Thermomechanical Treatment. Metals, 12.","DOI":"10.3390\/met12010079"},{"key":"ref_12","unstructured":"Shutko, K.I., and Marchenkov, D.A. (2021). Research of corrosion behavior of steam generator tubes for lead-cooled power unit. Proceedings of the Structural Materials for Heavy Liquid Metal Cooled Fast Reactors, International Atomic Energy Agency."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1007\/s11085-019-09896-z","article-title":"Corrosion Studies of Low-Alloyed FeCrAl Steels in Liquid Lead at 750 \u00b0C","volume":"91","author":"Lundberg","year":"2019","journal-title":"Oxid. Met."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1007\/s11085-017-9718-4","article-title":"Optimizing the Oxidation Properties of FeCrAl Alloys at Low Temperatures","volume":"88","author":"Ejenstam","year":"2017","journal-title":"Oxid. Met."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/j.jnucmat.2013.07.023","article-title":"Oxidation studies of Fe10CrAl\u2013RE alloys exposed to Pb at 550 \u00b0C for 10,000h","volume":"443","author":"Ejenstam","year":"2013","journal-title":"J. Nucl. Mater."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"101403","DOI":"10.1016\/j.nme.2023.101403","article-title":"Slow strain rate testing of Fe-10Cr-4Al ferritic steel in liquid lead and lead\u2013bismuth eutectic","volume":"34","author":"Petersson","year":"2023","journal-title":"Nucl. Mater. Energy"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"100958","DOI":"10.1016\/j.nme.2021.100958","article-title":"Development of a welding process to overlay FeCrAl alloy on a thin wall austenitic stainless steel tube","volume":"27","author":"Yang","year":"2021","journal-title":"Nucl. Mater. Energy"},{"key":"ref_18","unstructured":"D\u00f6mstedt, P., and Szakalos, P. (2021). Corrosion and mechanical testing of a low alloyed alumina forming austenite for liquid lead applications. Proceedings of the Structural Materials for Heavy Liquid Metal Cooled Fast Reactors, International Atomic Energy Agency."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/j.jnucmat.2015.03.011","article-title":"Long term corrosion resistance of alumina forming austenitic stainless steels in liquid lead","volume":"461","author":"Ejenstam","year":"2015","journal-title":"J. Nucl. Mater."},{"key":"ref_20","unstructured":"Garc\u00eda Ferr\u00e9, F., Pudoyer, C., Ventrella, A., Virgillito, E., Silvioli, L., Autones, L., Tarantino, M., Barbensi, A., and Cinotti, L. (2026, August 31). Newcleo\u2019s Strategy for Materials & Chemistry. Available online: https:\/\/conferences.iaea.org\/event\/436\/contributions\/38849\/attachments\/22641\/39327\/FR26-250.pdf."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1016\/j.corsci.2017.05.011","article-title":"Corrosion and radiation resistant nanoceramic coatings for lead fast reactors","volume":"124","author":"Mairov","year":"2017","journal-title":"Corros. Sci."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.actamat.2017.10.011","article-title":"Extreme ion irradiation of oxide nanoceramics: Influence of the irradiation spectrum","volume":"143","author":"Mairov","year":"2018","journal-title":"Acta Mater."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1434","DOI":"10.1007\/s40195-021-01264-8","article-title":"Corrosion Behaviors of Nitride Coatings on Titanium Alloy in NaCl-Induced Hot Corrosion","volume":"34","author":"Zhang","year":"2021","journal-title":"Acta Met. Sin."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"112521","DOI":"10.1016\/j.corsci.2024.112521","article-title":"Microstructure response and LBE corrosion behavior of the FeCrAlY coating after Au-ions irradiation","volume":"241","author":"Zhang","year":"2024","journal-title":"Corros. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1016\/j.jnucmat.2019.02.046","article-title":"Interaction between liquid lead-bismuth eutectic and aluminized Inconel 625 superalloy at 600 and 850 \u00b0C","volume":"518","author":"Majumdar","year":"2019","journal-title":"J. Nucl. Mater."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1033","DOI":"10.2320\/matertrans.M2010337","article-title":"Applicability of Al-Powder-Alloy Coating to Corrosion Barriers of 316SS in Liquid Lead-Bismuth Eutectic","volume":"52","author":"Kurata","year":"2011","journal-title":"Mater. Trans."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"112896","DOI":"10.1016\/j.corsci.2025.112896","article-title":"Influence of aluminizing and pre-oxidation on corrosion behavior of 316Ti in liquid Pb at 600\u2013700 \u00b0C","volume":"251","author":"Purwitasari","year":"2025","journal-title":"Corros. Sci."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"213","DOI":"10.1016\/j.corsci.2011.10.019","article-title":"Oxide scale formation of modified FeCrAl coatings exposed to liquid lead","volume":"55","author":"Fetzer","year":"2012","journal-title":"Corros. Sci."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.jnucmat.2011.11.006","article-title":"FeCrAlY and TiN coatings on T91 steel after irradiation with 72 MeV protons in flowing LBE","volume":"431","author":"Dai","year":"2012","journal-title":"J. Nucl. Mater."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1329","DOI":"10.1016\/j.nucengdes.2010.08.005","article-title":"Corrosion, Al containing corrosion barriers and mechanical properties of steels foreseen as structural materials in liquid lead alloy cooled nuclear systems","volume":"241","author":"Weisenburger","year":"2011","journal-title":"Nucl. Eng. Des."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.jnucmat.2012.03.018","article-title":"Development of aluminum-alloy coating on type 316SS for nuclear systems using liquid lead\u2013bismuth","volume":"424","author":"Kurata","year":"2012","journal-title":"J. Nucl. Mater."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"114923","DOI":"10.1016\/j.matdes.2025.114923","article-title":"Corrosion behaviour in liquid lead of pristine and irradiated FeCrAlNi coatings deposited by HiPIMS","volume":"260","author":"Vavassori","year":"2025","journal-title":"Mater. Des."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"366","DOI":"10.13182\/NT12-A13481","article-title":"A Functionally Graded Composite for Service in High-Temperature Lead- and Lead-Bismuth\u2013Cooled Nuclear Reactors\u2014I: Design","volume":"177","author":"Short","year":"2012","journal-title":"Nucl. Technol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"128542","DOI":"10.1016\/j.surfcoat.2022.128542","article-title":"Challenges and coating solutions for wear and corrosion inside Lead Bismuth Eutectic: A review","volume":"441","author":"Serag","year":"2022","journal-title":"Surf. Coat. Technol."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"115137","DOI":"10.1016\/j.nucengdes.2026.115137","article-title":"A code-oriented methodology for the qualification of coatings for lead fast reactors and other advanced nuclear systems","volume":"458","author":"Pudoyer","year":"2026","journal-title":"Nucl. Eng. Des."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"3958","DOI":"10.1016\/j.jmrt.2024.02.116","article-title":"Corrosion behavior of Cr coating on ferritic\/martensitic steels in liquid lead-bismuth eutectic at 600 \u00b0C and 700 \u00b0C","volume":"29","author":"Wang","year":"2024","journal-title":"J. Mater. Res. Technol."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Okonkwo, B.O., Jeong, C., and Jang, C. (2022). Advances on Cr and Ni Electrodeposition for Industrial Applications\u2014A Review. Coatings, 12.","DOI":"10.3390\/coatings12101555"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Guillon, R., Dalverny, O., Fori, B., Gazeau, C., and Alexis, J. (2022). Mechanical Behaviour of Hard Chromium Deposited from a Trivalent Chromium Bath. Coatings, 12.","DOI":"10.3390\/coatings12030354"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Pawlowski, L. (2008). The Science and Engineering of Thermal Spray Coatings, Wiley. [1st ed.].","DOI":"10.1002\/9780470754085"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Fauchais, P.L., Heberlein, J.V.R., and Boulos, M.I. (2014). Thermal Spray Fundamentals: From Powder to Part, Springer.","DOI":"10.1007\/978-0-387-68991-3"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"729","DOI":"10.1016\/j.actamat.2005.10.005","article-title":"Development of a generalized parameter window for cold spray deposition","volume":"54","author":"Schmidt","year":"2006","journal-title":"Acta Mater."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"135","DOI":"10.2355\/isijinternational.43.135","article-title":"Annealing of Cold-worked Austenitic Stainless Steels","volume":"43","author":"Padilha","year":"2003","journal-title":"ISIJ Int."},{"key":"ref_43","doi-asserted-by":"crossref","unstructured":"Msolli, S. (2025). Shear Instability and Localization in High-Speed Cold Spray Processes: Impact on Particle Fragmentation and Bonding Mechanisms. Materials, 18.","DOI":"10.3390\/ma18030490"},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Espallargas, N. (2015). Future Development of Thermal Spray Coatings, Elsevier.","DOI":"10.1016\/B978-0-85709-769-9.00001-4"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1007\/s11666-009-9427-x","article-title":"Influence of Spray Materials and Their Surface Oxidation on the Critical Velocity in Cold Spraying","volume":"19","author":"Li","year":"2010","journal-title":"J. Therm. 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