{"title":"通过控制齐纳-霍洛蒙参数探索具有不同微观结构特征的铝镁硅铜合金的腐蚀行为","authors":"","doi":"10.1016/j.matchar.2024.114390","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, the microstructure characteristics of Al-Mg-Si-Cu alloy were investigated under various hot deformation Zener-Hollomon parameters. Intergranular and electrochemical corrosion behaviors of solid solution-aged samples with lnZ values of 19.3 to 31.5 were analyzed. The results indicated that the corrosion resistance of the samples initially increased and then decreased as the lnZ value decreased. Precipitates and continuous Cu-rich films on high angle grain boundaries are the primary causes of their susceptibility to corrosion. Conversely, the absence of continuous effective cathodes on low angle grain boundaries is conducive to impeding intergranular corrosion. The Z23 sample (lnZ = 23.1) showed the highest corrosion properties due to its relatively low recrystallization volume fraction of 28.2 % and a higher proportion of low angle grain boundaries in the microstructure. It is promising to enhance the corrosion properties of alloys without compromising mechanical properties by controlling hot deformation parameters.</p></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Explore the corrosion behavior of Al-Mg-Si-Cu alloy with various microstructure characteristics through controlling Zener-Hollomon parameter\",\"authors\":\"\",\"doi\":\"10.1016/j.matchar.2024.114390\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, the microstructure characteristics of Al-Mg-Si-Cu alloy were investigated under various hot deformation Zener-Hollomon parameters. Intergranular and electrochemical corrosion behaviors of solid solution-aged samples with lnZ values of 19.3 to 31.5 were analyzed. The results indicated that the corrosion resistance of the samples initially increased and then decreased as the lnZ value decreased. Precipitates and continuous Cu-rich films on high angle grain boundaries are the primary causes of their susceptibility to corrosion. Conversely, the absence of continuous effective cathodes on low angle grain boundaries is conducive to impeding intergranular corrosion. The Z23 sample (lnZ = 23.1) showed the highest corrosion properties due to its relatively low recrystallization volume fraction of 28.2 % and a higher proportion of low angle grain boundaries in the microstructure. It is promising to enhance the corrosion properties of alloys without compromising mechanical properties by controlling hot deformation parameters.</p></div>\",\"PeriodicalId\":18727,\"journal\":{\"name\":\"Materials Characterization\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Characterization\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S104458032400771X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Characterization","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S104458032400771X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Explore the corrosion behavior of Al-Mg-Si-Cu alloy with various microstructure characteristics through controlling Zener-Hollomon parameter
In this work, the microstructure characteristics of Al-Mg-Si-Cu alloy were investigated under various hot deformation Zener-Hollomon parameters. Intergranular and electrochemical corrosion behaviors of solid solution-aged samples with lnZ values of 19.3 to 31.5 were analyzed. The results indicated that the corrosion resistance of the samples initially increased and then decreased as the lnZ value decreased. Precipitates and continuous Cu-rich films on high angle grain boundaries are the primary causes of their susceptibility to corrosion. Conversely, the absence of continuous effective cathodes on low angle grain boundaries is conducive to impeding intergranular corrosion. The Z23 sample (lnZ = 23.1) showed the highest corrosion properties due to its relatively low recrystallization volume fraction of 28.2 % and a higher proportion of low angle grain boundaries in the microstructure. It is promising to enhance the corrosion properties of alloys without compromising mechanical properties by controlling hot deformation parameters.
期刊介绍:
Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials.
The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal.
The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include:
Metals & Alloys
Ceramics
Nanomaterials
Biomedical materials
Optical materials
Composites
Natural Materials.