Corrosion protection of Mg‐SiC nanocomposite through plasma electrolytic oxidation coating process

Materials and Corrosion Pub Date : 2022-06-28 DOI:10.1002/maco.202213118

A. P. Golhin, S. Kamrani, C. Fleck, Alireza Ghasemi

{"title":"Corrosion protection of Mg‐SiC nanocomposite through plasma electrolytic oxidation coating process","authors":"A. P. Golhin, S. Kamrani, C. Fleck, Alireza Ghasemi","doi":"10.1002/maco.202213118","DOIUrl":null,"url":null,"abstract":"Understanding the role of nanoparticles in magnesium (Mg)‐based materials and protective coating provides valuable information to achieve an optimized combination of mechanical and corrosion protection properties of Mg nanocomposites. The present study investigates the effects of SiC nanoparticles on the corrosion behavior and structure of Mg‐SiC composites substrates coated by plasma electrolytic oxidation (PEO). Moreover, the influence of different volume fractions of SiCn up to 10% on corrosion behavior and galvanic reactions between Mg matrix and SiC particles was also investigated. The morphology, distribution of the phases, and the microstructure of the coating were characterized by SEM, EDAX, X‐ray photoelectron spectroscopy, and XRD. The corrosion resistance of the samples was determined through dynamic polarization and electrochemical impedance spectroscopy tests before and after PEO coating treatment. The results indicate that the Mg nanocomposite with 1 vol% SiCn (M1Sn) coated by PEO coating shows higher corrosion resistance than the samples with a higher percentage of SiCn, as well as the sample without SiCn particles.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"69 1","pages":"1813 - 1825"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials and Corrosion","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/maco.202213118","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Understanding the role of nanoparticles in magnesium (Mg)‐based materials and protective coating provides valuable information to achieve an optimized combination of mechanical and corrosion protection properties of Mg nanocomposites. The present study investigates the effects of SiC nanoparticles on the corrosion behavior and structure of Mg‐SiC composites substrates coated by plasma electrolytic oxidation (PEO). Moreover, the influence of different volume fractions of SiCn up to 10% on corrosion behavior and galvanic reactions between Mg matrix and SiC particles was also investigated. The morphology, distribution of the phases, and the microstructure of the coating were characterized by SEM, EDAX, X‐ray photoelectron spectroscopy, and XRD. The corrosion resistance of the samples was determined through dynamic polarization and electrochemical impedance spectroscopy tests before and after PEO coating treatment. The results indicate that the Mg nanocomposite with 1 vol% SiCn (M1Sn) coated by PEO coating shows higher corrosion resistance than the samples with a higher percentage of SiCn, as well as the sample without SiCn particles.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

等离子体电解氧化涂层对Mg - SiC纳米复合材料的防腐作用

了解纳米颗粒在镁基材料和保护涂层中的作用，为实现镁纳米复合材料的机械和防腐性能的优化组合提供了有价值的信息。本文研究了SiC纳米颗粒对等离子体电解氧化(PEO)涂层Mg - SiC复合材料基体腐蚀行为和结构的影响。此外，还研究了不同体积分数(最高为10%)的SiCn对Mg基体与SiC颗粒之间的腐蚀行为和电反应的影响。采用扫描电镜(SEM)、电子能谱(EDAX)、X射线光电子能谱(X - ray光电子能谱)和X射线衍射(XRD)对涂层的形貌、相分布和微观结构进行了表征。通过动态极化和电化学阻抗谱测试，测定了PEO涂层处理前后样品的耐蚀性。结果表明，PEO包覆1 vol% SiCn (M1Sn)的Mg纳米复合材料的耐蚀性优于SiCn含量较高的样品和不含SiCn颗粒的样品。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Materials and Corrosion

自引率

0.00%

发文量