Da-Hai Xia , Yingchang Mao , Yu Zhu , Quan Yuan , Cheng-Man Deng , Wenbin Hu
{"title":"一种研究金属材料在动态海水/空气界面腐蚀敏感性的新方法","authors":"Da-Hai Xia , Yingchang Mao , Yu Zhu , Quan Yuan , Cheng-Man Deng , Wenbin Hu","doi":"10.1016/j.corcom.2022.03.001","DOIUrl":null,"url":null,"abstract":"<div><p>A novel device is constructed to study the localized corrosion susceptibility of 2024 aluminum alloy at a dynamic seawater/air interface. Corrosion in three distinct regions are identified: full immersion region, seawater/air interfacial region (alternant wet/dry region), and atmosphere region. The corrosion process in the interfacial region over time was studied by EIS and the corrosion product was characterized by SEM. Experimental results revealed that, a layer of intense and uniform corrosion product was formed on the seawater/air interfacial region, due to the oxygen enrichment in that region. Pitting corrosion was more severe in the full immersion region than that in the seawater/air interface, as verified by a lower charge transfer resistance and more severe pitting corrosion and intergranular corrosion extent.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"6 ","pages":"Pages 62-66"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266922000135/pdfft?md5=a751b941240e965b975f3b31479ef41e&pid=1-s2.0-S2667266922000135-main.pdf","citationCount":"8","resultStr":"{\"title\":\"A novel approach used to study the corrosion susceptibility of metallic materials at a dynamic seawater/air interface\",\"authors\":\"Da-Hai Xia , Yingchang Mao , Yu Zhu , Quan Yuan , Cheng-Man Deng , Wenbin Hu\",\"doi\":\"10.1016/j.corcom.2022.03.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A novel device is constructed to study the localized corrosion susceptibility of 2024 aluminum alloy at a dynamic seawater/air interface. Corrosion in three distinct regions are identified: full immersion region, seawater/air interfacial region (alternant wet/dry region), and atmosphere region. The corrosion process in the interfacial region over time was studied by EIS and the corrosion product was characterized by SEM. Experimental results revealed that, a layer of intense and uniform corrosion product was formed on the seawater/air interfacial region, due to the oxygen enrichment in that region. Pitting corrosion was more severe in the full immersion region than that in the seawater/air interface, as verified by a lower charge transfer resistance and more severe pitting corrosion and intergranular corrosion extent.</p></div>\",\"PeriodicalId\":100337,\"journal\":{\"name\":\"Corrosion Communications\",\"volume\":\"6 \",\"pages\":\"Pages 62-66\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2667266922000135/pdfft?md5=a751b941240e965b975f3b31479ef41e&pid=1-s2.0-S2667266922000135-main.pdf\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2667266922000135\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667266922000135","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A novel approach used to study the corrosion susceptibility of metallic materials at a dynamic seawater/air interface
A novel device is constructed to study the localized corrosion susceptibility of 2024 aluminum alloy at a dynamic seawater/air interface. Corrosion in three distinct regions are identified: full immersion region, seawater/air interfacial region (alternant wet/dry region), and atmosphere region. The corrosion process in the interfacial region over time was studied by EIS and the corrosion product was characterized by SEM. Experimental results revealed that, a layer of intense and uniform corrosion product was formed on the seawater/air interfacial region, due to the oxygen enrichment in that region. Pitting corrosion was more severe in the full immersion region than that in the seawater/air interface, as verified by a lower charge transfer resistance and more severe pitting corrosion and intergranular corrosion extent.
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