{"title":"AZ91D镁合金上三磷酸铝和铈改性富镁环氧涂层的性能","authors":"Yujing Fan, Y. Zuo, Xuhui Zhao, Yuming Tang","doi":"10.11903/1002.6495.2014.057","DOIUrl":null,"url":null,"abstract":"A corrosion resistant coating for AZ91 D magnesium alloy was prepared by adding pure magnesium particles, aluminium triphosphate(SAP) and ceria in an epoxy coating. The performance of the coating in 3%Na Cl solution was studied with methods of Machu test, electrochemical impedance measurement and scanning electron microscope. The results show that the Mg-rich epoxy coating failed and the magnesium substrate was corroded after immersion for about 2000 h,while no corrosion was observed beneath the coating with SAP and ceria addition after immersion for 4448 h. Distinctly the added SAP and ceria can decrease the activity of magnesium particles in the Mg-rich epoxy and thereby prolong the life time of the coating. On the other hand, the compactness and the barrier property of the coating are improved as well.","PeriodicalId":10727,"journal":{"name":"Corrosion Science and Protection Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance of Aluminum Triphosphate and Ceria Modified Mg-rich Epoxy Coating on AZ91D Magnesium Alloy\",\"authors\":\"Yujing Fan, Y. Zuo, Xuhui Zhao, Yuming Tang\",\"doi\":\"10.11903/1002.6495.2014.057\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A corrosion resistant coating for AZ91 D magnesium alloy was prepared by adding pure magnesium particles, aluminium triphosphate(SAP) and ceria in an epoxy coating. The performance of the coating in 3%Na Cl solution was studied with methods of Machu test, electrochemical impedance measurement and scanning electron microscope. The results show that the Mg-rich epoxy coating failed and the magnesium substrate was corroded after immersion for about 2000 h,while no corrosion was observed beneath the coating with SAP and ceria addition after immersion for 4448 h. Distinctly the added SAP and ceria can decrease the activity of magnesium particles in the Mg-rich epoxy and thereby prolong the life time of the coating. On the other hand, the compactness and the barrier property of the coating are improved as well.\",\"PeriodicalId\":10727,\"journal\":{\"name\":\"Corrosion Science and Protection Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-02-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Science and Protection Technology\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.11903/1002.6495.2014.057\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Chemical Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science and Protection Technology","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.11903/1002.6495.2014.057","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Chemical Engineering","Score":null,"Total":0}
Performance of Aluminum Triphosphate and Ceria Modified Mg-rich Epoxy Coating on AZ91D Magnesium Alloy
A corrosion resistant coating for AZ91 D magnesium alloy was prepared by adding pure magnesium particles, aluminium triphosphate(SAP) and ceria in an epoxy coating. The performance of the coating in 3%Na Cl solution was studied with methods of Machu test, electrochemical impedance measurement and scanning electron microscope. The results show that the Mg-rich epoxy coating failed and the magnesium substrate was corroded after immersion for about 2000 h,while no corrosion was observed beneath the coating with SAP and ceria addition after immersion for 4448 h. Distinctly the added SAP and ceria can decrease the activity of magnesium particles in the Mg-rich epoxy and thereby prolong the life time of the coating. On the other hand, the compactness and the barrier property of the coating are improved as well.
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