{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,2]],"date-time":"2026-08-02T23:26:56Z","timestamp":1785713216525,"version":"3.56.0"},"reference-count":43,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,4,30]],"date-time":"2025-04-30T00:00:00Z","timestamp":1745971200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015401","name":"Key Research and Development Program of Shaanxi","doi-asserted-by":"publisher","award":["2024GX-YBXM-346"],"award-info":[{"award-number":["2024GX-YBXM-346"]}],"id":[{"id":"10.13039\/501100015401","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study investigates the enhancement of corrosion resistance in magnesium-lithium alloys through plasma electrolytic oxidation (PEO) coatings incorporating ZnF2 via in situ synthesis. By adjusting Zn2\u207a concentrations (4\u201316 g\/L) in a zirconium salt-based electrolyte, ceramic coatings with tailored ZnF2 content, thickness, and porosity were fabricated. The optimal Zn2\u207a concentration of 12 g\/L yielded a ZnF2-rich coating with isolated pores and enhanced densification (inner layer resistance Ri = 3.01 \u00d7 104 \u03a9\u22c5cm2), achieving a corrosion current density (icorr) of 4.42 \u00d7 10\u22128\u2009A\/cm2 and polarization resistance (Rp) of 8.5 \u00d7 105 \u03a9\u22c5cm2, representing a 354-fold improvement over untreated LA103Z. Higher Zn2\u207a concentrations (16 g\/L) induced interconnected pores and ZnO formation, degrading corrosion resistance. Long-term immersion (168 h in 3.5 wt% NaCl) confirmed the durability of Zn12 coatings (mass loss: 0.6 mg), while Zn4 and Zn16 coatings exhibited severe localized corrosion. The study demonstrates that balancing Zn2\u207a concentration optimizes ZnF2 passivation and pore isolation, offering a scalable strategy for Mg-Li alloy protection in corrosive environments.<\/jats:p>","DOI":"10.3390\/ma18092072","type":"journal-article","created":{"date-parts":[[2025,5,1]],"date-time":"2025-05-01T06:49:02Z","timestamp":1746082142000},"page":"2072","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Influence of Zn2\u207a Concentration on Ceramic Coatings for Corrosion Protection of Magnesium-Lithium Alloys"],"prefix":"10.3390","volume":"18","author":[{"given":"Yifei","family":"Wang","sequence":"first","affiliation":[{"name":"School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China"},{"name":"Northwest Institute for Non-Ferrous Metal Research, Xi\u2019an 710016, China"},{"name":"Rare Mental Materials Surface Engineering Technology Research Center of Shaanxi Province, Xi\u2019an 710016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunming","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongzhan","family":"Li","sequence":"additional","affiliation":[{"name":"Northwest Institute for Non-Ferrous Metal Research, Xi\u2019an 710016, China"},{"name":"Rare Mental Materials Surface Engineering Technology Research Center of Shaanxi Province, Xi\u2019an 710016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhen","family":"Zhang","sequence":"additional","affiliation":[{"name":"Northwest Institute for Non-Ferrous Metal Research, Xi\u2019an 710016, China"},{"name":"Rare Mental Materials Surface Engineering Technology Research Center of Shaanxi Province, Xi\u2019an 710016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1016\/j.pmatsci.2017.04.011","article-title":"Fundamentals and advances in magnesium alloy corrosion","volume":"89","author":"Esmaily","year":"2017","journal-title":"Prog. 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