Zhengyi Li, Yibo Ai, Lei Wen, Hongying Yu, Weidong Zhang, Dongbai Sun
{"title":"添加 La2O3 对 TiB2-Ni 等离子喷涂涂层的微观结构、机械性能和耐摩擦腐蚀性能的影响","authors":"Zhengyi Li, Yibo Ai, Lei Wen, Hongying Yu, Weidong Zhang, Dongbai Sun","doi":"10.1016/j.jmrt.2024.07.232","DOIUrl":null,"url":null,"abstract":"To enhance the tribocorrosion resistance of 7075-T6 aluminum alloy in deep sea environments, TiB–Ni coatings with varying LaO content were deposited on 7075-T6 aluminum alloy substrates using plasma spray technology. The effects of different LaO contents on the organization, structure, and properties of the coatings were analyzed. The results indicated that LaO incorporation suppressed brittle phase formation such as NiB; 1.0 wt% LaO addition reduced NiB by 16.9%. The coating's corrosion resistance significantly improved with LaO doping - the self-corrosion current density of the 1.0 wt% LaO-doped coating decreased from 71.2 nA/cm to 30.2 nA/cm.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of added La2O3 on the microstructure, mechanical properties, and tribocorrosion resistance of TiB2–Ni plasma-sprayed coatings\",\"authors\":\"Zhengyi Li, Yibo Ai, Lei Wen, Hongying Yu, Weidong Zhang, Dongbai Sun\",\"doi\":\"10.1016/j.jmrt.2024.07.232\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To enhance the tribocorrosion resistance of 7075-T6 aluminum alloy in deep sea environments, TiB–Ni coatings with varying LaO content were deposited on 7075-T6 aluminum alloy substrates using plasma spray technology. The effects of different LaO contents on the organization, structure, and properties of the coatings were analyzed. The results indicated that LaO incorporation suppressed brittle phase formation such as NiB; 1.0 wt% LaO addition reduced NiB by 16.9%. The coating's corrosion resistance significantly improved with LaO doping - the self-corrosion current density of the 1.0 wt% LaO-doped coating decreased from 71.2 nA/cm to 30.2 nA/cm.\",\"PeriodicalId\":501120,\"journal\":{\"name\":\"Journal of Materials Research and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Research and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jmrt.2024.07.232\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Research and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.jmrt.2024.07.232","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Influence of added La2O3 on the microstructure, mechanical properties, and tribocorrosion resistance of TiB2–Ni plasma-sprayed coatings
To enhance the tribocorrosion resistance of 7075-T6 aluminum alloy in deep sea environments, TiB–Ni coatings with varying LaO content were deposited on 7075-T6 aluminum alloy substrates using plasma spray technology. The effects of different LaO contents on the organization, structure, and properties of the coatings were analyzed. The results indicated that LaO incorporation suppressed brittle phase formation such as NiB; 1.0 wt% LaO addition reduced NiB by 16.9%. The coating's corrosion resistance significantly improved with LaO doping - the self-corrosion current density of the 1.0 wt% LaO-doped coating decreased from 71.2 nA/cm to 30.2 nA/cm.
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