{"title":"The Effect of Ce Addition on Corrosion Behavior of Permanent Mold Casting Mg-4Al-2Sn-1Ca alloy","authors":"K. Park, B. Kim, J. Jung, D. Cho, I. Park","doi":"10.7777/JKFS.2014.34.6.187","DOIUrl":null,"url":null,"abstract":"In the present work, the effect of adding Ce on the corrosion behavior of Mg-4Al-2Sn-1Ca alloy was investigated. The studied alloys were fabricated by gravity casting method and a potentiodynamic polarization, A.C. impedance and hydrogen evolution tests were carried out in a 3.5% NaCl solution with pH 7.2 at room temperature to measure the corrosion properties of Mg-4Al-2Sn-1CaxCe alloys. The microstructure of the Mg-4Al-2Sn-1Ca alloy was composed of α-Mg, Mg17Al12, Mg2Sn and CaMgSn phase. Also, a Al11Ce3 phase was newly formed by the addition of Ce. With an increase of the Ce contents, the microstructure became refined and the corrosion resistance improved.","PeriodicalId":16318,"journal":{"name":"Journal of Korea Foundry Society","volume":"13 1","pages":"187-193"},"PeriodicalIF":0.0000,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Korea Foundry Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7777/JKFS.2014.34.6.187","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
In the present work, the effect of adding Ce on the corrosion behavior of Mg-4Al-2Sn-1Ca alloy was investigated. The studied alloys were fabricated by gravity casting method and a potentiodynamic polarization, A.C. impedance and hydrogen evolution tests were carried out in a 3.5% NaCl solution with pH 7.2 at room temperature to measure the corrosion properties of Mg-4Al-2Sn-1CaxCe alloys. The microstructure of the Mg-4Al-2Sn-1Ca alloy was composed of α-Mg, Mg17Al12, Mg2Sn and CaMgSn phase. Also, a Al11Ce3 phase was newly formed by the addition of Ce. With an increase of the Ce contents, the microstructure became refined and the corrosion resistance improved.
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