{"title":"X80 钢环氧树脂涂层在阴极极化条件下的性能研究","authors":"Lyudmila Nyrkova","doi":"10.62638/zasmat1130","DOIUrl":null,"url":null,"abstract":"The effect of cathodic polarization on the properties of the protective epoxy coating on X80 steel samples under cyclic changes in temperature from 20 to 75 оC over a period ~3.5 months was investigated. It is shown that in a 3% NaCl solution, with decreasing polarization potential from -1.05 to -0.85 V, the disbondment radius of the epoxy coating decreased by ~3.48 times (from 10.8 to 3.1 mm). At -0.75 V and in the absence of polarization, disbondment of the coating from the steel don’t observed. By potential -0.75 V coating retains its protective properties according to the transient specific electrical resistance indicator, and its aging is slowed down.","PeriodicalId":23842,"journal":{"name":"Zastita materijala","volume":"27 2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of properties of epoxy coating on X80 steelunder cathodic polarization conditions\",\"authors\":\"Lyudmila Nyrkova\",\"doi\":\"10.62638/zasmat1130\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The effect of cathodic polarization on the properties of the protective epoxy coating on X80 steel samples under cyclic changes in temperature from 20 to 75 оC over a period ~3.5 months was investigated. It is shown that in a 3% NaCl solution, with decreasing polarization potential from -1.05 to -0.85 V, the disbondment radius of the epoxy coating decreased by ~3.48 times (from 10.8 to 3.1 mm). At -0.75 V and in the absence of polarization, disbondment of the coating from the steel don’t observed. By potential -0.75 V coating retains its protective properties according to the transient specific electrical resistance indicator, and its aging is slowed down.\",\"PeriodicalId\":23842,\"journal\":{\"name\":\"Zastita materijala\",\"volume\":\"27 2\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-06-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zastita materijala\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.62638/zasmat1130\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zastita materijala","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.62638/zasmat1130","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
研究了在温度从 20 ℃ 到 75 ℃ 的约 3.5 个月周期性变化下，阴极极化对 X80 钢样品上环氧树脂保护涂层性能的影响。结果表明，在 3% 的 NaCl 溶液中，随着极化电位从 -1.05 V 下降到 -0.85 V，环氧涂层的脱粘半径下降了约 3.48 倍（从 10.8 mm 下降到 3.1 mm）。在 -0.75 V 和无极化条件下，没有观察到涂层与钢材的脱粘现象。根据瞬态比电阻指标，在电位为 -0.75 V 时，涂层仍保持其保护特性，而且老化速度减慢。
Investigation of properties of epoxy coating on X80 steelunder cathodic polarization conditions
The effect of cathodic polarization on the properties of the protective epoxy coating on X80 steel samples under cyclic changes in temperature from 20 to 75 оC over a period ~3.5 months was investigated. It is shown that in a 3% NaCl solution, with decreasing polarization potential from -1.05 to -0.85 V, the disbondment radius of the epoxy coating decreased by ~3.48 times (from 10.8 to 3.1 mm). At -0.75 V and in the absence of polarization, disbondment of the coating from the steel don’t observed. By potential -0.75 V coating retains its protective properties according to the transient specific electrical resistance indicator, and its aging is slowed down.
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