{"title":"Stability of GP zones in plastically deformed Al-4Cu alloy","authors":"A. Klee, M. Grabski","doi":"10.1179/MSC.1984.18.3.158","DOIUrl":null,"url":null,"abstract":"AbstractIt is shown by differential scanning calorimetry and transmission electron microscopy that extensive plastic deformation of Al-4Cu (wt-%) alloy following quenching causes fragmentation of GP zones to an extent which depends on strain. Subsequent continuous heating of samples causes two concurrent processes: dissolution of small and growth of large GP zones. The fragmentation after 33% strain is so extensive that no growth process was observed. The activation energy for dissolution of GP zones in unstrained and strained material is 126 ± 6 kJ mol−1 and about 100 kJ mol−1 respectively.","PeriodicalId":18750,"journal":{"name":"Metal science","volume":"38 1","pages":"158-160"},"PeriodicalIF":0.0000,"publicationDate":"1984-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1179/MSC.1984.18.3.158","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
AbstractIt is shown by differential scanning calorimetry and transmission electron microscopy that extensive plastic deformation of Al-4Cu (wt-%) alloy following quenching causes fragmentation of GP zones to an extent which depends on strain. Subsequent continuous heating of samples causes two concurrent processes: dissolution of small and growth of large GP zones. The fragmentation after 33% strain is so extensive that no growth process was observed. The activation energy for dissolution of GP zones in unstrained and strained material is 126 ± 6 kJ mol−1 and about 100 kJ mol−1 respectively.
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