{"title":"The role of second phases in the Micro-Galvanic Corrosion Mechanism of AZ31B Magnesium Alloy","authors":"Xiangyu Li, Baoji Ma, Bin Liu, Jinkui Cao, Liangliang Li, Chaopeng Xu","doi":"10.1002/slct.202405623","DOIUrl":null,"url":null,"abstract":"<p>The effect of the second relative on the microgalvanic corrosion of AZ31B alloy was studied. The behavior mechanism of the second phase in corrosion was discussed by adjusting the area ratio of the second phase by heat treatment. The experimental results show that the corrosion sensitivity of the second phase region and the grain boundary is higher, and the samples with larger second phase area show higher electrochemical activity and faster corrosion rate in the corrosive environment. It is found that the microcouple effect between the second phase and Mg matrix accelerates the dissolution rate of the alloy. This study provides theoretical support for further understanding and improving the corrosion resistance of AZ31B alloy.</p>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"10 16","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ChemistrySelect","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/slct.202405623","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of the second relative on the microgalvanic corrosion of AZ31B alloy was studied. The behavior mechanism of the second phase in corrosion was discussed by adjusting the area ratio of the second phase by heat treatment. The experimental results show that the corrosion sensitivity of the second phase region and the grain boundary is higher, and the samples with larger second phase area show higher electrochemical activity and faster corrosion rate in the corrosive environment. It is found that the microcouple effect between the second phase and Mg matrix accelerates the dissolution rate of the alloy. This study provides theoretical support for further understanding and improving the corrosion resistance of AZ31B alloy.
期刊介绍：
ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.
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