{"title":"右旋糖酐对6061Al-15% (v) SiC(P)复合材料在HCl介质中的腐蚀抑制作用","authors":"B.P. Charitha, Padmalatha Rao","doi":"10.1016/j.pisc.2016.04.026","DOIUrl":null,"url":null,"abstract":"<div><p>Dextran, a biopolymer was used as an eco-friendly inhibitor to control the corrosion of 6061Al–15%<sub>(v)</sub> SiC<sub>(P)</sub> composite in 0.25<!--> <!-->M HCl medium. The electrochemical studies like potentiodynamic polarization method, electrochemical impedance spectroscopy techniques were adopted. Evaluation of kinetic and thermodynamic parameters was done. Inhibitor adsorption on the surface of the composite was confirmed by surface morphology studies like SEM and EDX studies. Maximum inhibition efficiency of 80% was obtained at 303<!--> <!-->K. Dextran acted as mixed type of inhibitor, underwent physical adsorption and followed Langmuir adsorption isotherm.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 176-178"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.026","citationCount":"3","resultStr":"{\"title\":\"Inhibitory action of dextran on the corrosion of 6061Al–15%(v) SiC(P) composite in HCl medium\",\"authors\":\"B.P. Charitha, Padmalatha Rao\",\"doi\":\"10.1016/j.pisc.2016.04.026\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Dextran, a biopolymer was used as an eco-friendly inhibitor to control the corrosion of 6061Al–15%<sub>(v)</sub> SiC<sub>(P)</sub> composite in 0.25<!--> <!-->M HCl medium. The electrochemical studies like potentiodynamic polarization method, electrochemical impedance spectroscopy techniques were adopted. Evaluation of kinetic and thermodynamic parameters was done. Inhibitor adsorption on the surface of the composite was confirmed by surface morphology studies like SEM and EDX studies. Maximum inhibition efficiency of 80% was obtained at 303<!--> <!-->K. Dextran acted as mixed type of inhibitor, underwent physical adsorption and followed Langmuir adsorption isotherm.</p></div>\",\"PeriodicalId\":92112,\"journal\":{\"name\":\"Perspectives in science\",\"volume\":\"8 \",\"pages\":\"Pages 176-178\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.026\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Perspectives in science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213020916300416\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Perspectives in science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213020916300416","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
摘要
采用生物聚合物葡聚糖作为环保缓蚀剂，对6061Al-15% (v) SiC(P)复合材料在0.25 M HCl介质中的腐蚀进行了控制。采用了动电位极化法、电化学阻抗谱等电化学研究方法。对动力学和热力学参数进行了评价。通过SEM和EDX等表面形貌研究证实了抑制剂在复合材料表面的吸附作用。在303 K时，抑制率最高达80%。葡聚糖作为混合型抑制剂，进行物理吸附，遵循Langmuir等温线吸附。
Inhibitory action of dextran on the corrosion of 6061Al–15%(v) SiC(P) composite in HCl medium
Dextran, a biopolymer was used as an eco-friendly inhibitor to control the corrosion of 6061Al–15%(v) SiC(P) composite in 0.25 M HCl medium. The electrochemical studies like potentiodynamic polarization method, electrochemical impedance spectroscopy techniques were adopted. Evaluation of kinetic and thermodynamic parameters was done. Inhibitor adsorption on the surface of the composite was confirmed by surface morphology studies like SEM and EDX studies. Maximum inhibition efficiency of 80% was obtained at 303 K. Dextran acted as mixed type of inhibitor, underwent physical adsorption and followed Langmuir adsorption isotherm.
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