{"title":"基于镁合金 AZ31 的 LDHs@ZIF-67 复合涂层的制造和腐蚀性能评估","authors":"Yonghua Chen , Zhenzhen Tian , Fubing Yu , Mingyi Wu , Wenhui Yao , Yuantai He , Yuan Yuan , Zhihui Xie , Guozhi Wu , Jiahao Wu , Fusheng Pan , Liang Wu","doi":"10.1016/j.surfcoat.2024.131551","DOIUrl":null,"url":null,"abstract":"<div><div>The widespread application of magnesium (Mg) and Mg alloys is limited by their poor corrosion resistance. The anti-corrosion performance of micro-arc oxidation (MAO) is not ideal enough. Therefore, this study fabricated various LDHs@ZIF-67 composite coatings on MAO-coated Mg alloy. The surface and interface structure, composition, corrosion stability and mechanism of the LDHs@ZIF-67 composite coatings were investigated. The results suggested that the Mg<img>Co LDHs@ZIF-67 coating represented the lowest corrosion current density (<em>i</em><sub>corr</sub> = 2.51 × 10<sup>−8</sup> A/cm<sup>2</sup>), the lowest corrosion rate (hydrogen evolution volume = 3.21 mL·cm<sup>−2</sup>) and the best corrosion resistance. The stable existence of LDHs and ZIF-67 structures synergistically integrated to produce a denser composite coating, enhancing the corrosion resistance of AZ31, and surpassing the limitations of individual materials in providing long-term corrosion protection. Such composite coatings are poised to offer efficacious solutions to prevalent metal corrosion issues.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"495 ","pages":"Article 131551"},"PeriodicalIF":5.3000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fabrication and corrosion performance evaluation of LDHs@ZIF-67 composite coatings based on magnesium alloys AZ31\",\"authors\":\"Yonghua Chen , Zhenzhen Tian , Fubing Yu , Mingyi Wu , Wenhui Yao , Yuantai He , Yuan Yuan , Zhihui Xie , Guozhi Wu , Jiahao Wu , Fusheng Pan , Liang Wu\",\"doi\":\"10.1016/j.surfcoat.2024.131551\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The widespread application of magnesium (Mg) and Mg alloys is limited by their poor corrosion resistance. The anti-corrosion performance of micro-arc oxidation (MAO) is not ideal enough. Therefore, this study fabricated various LDHs@ZIF-67 composite coatings on MAO-coated Mg alloy. The surface and interface structure, composition, corrosion stability and mechanism of the LDHs@ZIF-67 composite coatings were investigated. The results suggested that the Mg<img>Co LDHs@ZIF-67 coating represented the lowest corrosion current density (<em>i</em><sub>corr</sub> = 2.51 × 10<sup>−8</sup> A/cm<sup>2</sup>), the lowest corrosion rate (hydrogen evolution volume = 3.21 mL·cm<sup>−2</sup>) and the best corrosion resistance. The stable existence of LDHs and ZIF-67 structures synergistically integrated to produce a denser composite coating, enhancing the corrosion resistance of AZ31, and surpassing the limitations of individual materials in providing long-term corrosion protection. Such composite coatings are poised to offer efficacious solutions to prevalent metal corrosion issues.</div></div>\",\"PeriodicalId\":22009,\"journal\":{\"name\":\"Surface & Coatings Technology\",\"volume\":\"495 \",\"pages\":\"Article 131551\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-11-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surface & Coatings Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0257897224011824\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897224011824","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Fabrication and corrosion performance evaluation of LDHs@ZIF-67 composite coatings based on magnesium alloys AZ31
The widespread application of magnesium (Mg) and Mg alloys is limited by their poor corrosion resistance. The anti-corrosion performance of micro-arc oxidation (MAO) is not ideal enough. Therefore, this study fabricated various LDHs@ZIF-67 composite coatings on MAO-coated Mg alloy. The surface and interface structure, composition, corrosion stability and mechanism of the LDHs@ZIF-67 composite coatings were investigated. The results suggested that the MgCo LDHs@ZIF-67 coating represented the lowest corrosion current density (icorr = 2.51 × 10−8 A/cm2), the lowest corrosion rate (hydrogen evolution volume = 3.21 mL·cm−2) and the best corrosion resistance. The stable existence of LDHs and ZIF-67 structures synergistically integrated to produce a denser composite coating, enhancing the corrosion resistance of AZ31, and surpassing the limitations of individual materials in providing long-term corrosion protection. Such composite coatings are poised to offer efficacious solutions to prevalent metal corrosion issues.
期刊介绍：
Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance:
A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting.
B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.
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