Pei-Ing Lee, Shih-Ying Chang, Yu-Kai Sun, T. Chuang
{"title":"Effects of Surface Roughness on the Diffusion Bonding of 2024 Aluminum Alloy","authors":"Pei-Ing Lee, Shih-Ying Chang, Yu-Kai Sun, T. Chuang","doi":"10.11159/mmme22.119","DOIUrl":null,"url":null,"abstract":"- The interfacial microstructure and shear strength properties of solid-state diffusion bonded 2024 aluminium alloy were investigated under varied surface roughness. The results indicated a high strength of 79.7 MPa for specimens electro-polished after diffusion bonding at 490°C for 120 min under pressure of 5 MPa, approximately 10 times above the minimally required shear strength of 7.9 MPa of the MIL-STD-883G specification. It was also found that the shear strength increased with increases in bonding temperature from 440°C to 490°C and bonding time from 30 to 240 min.","PeriodicalId":385356,"journal":{"name":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11159/mmme22.119","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
- The interfacial microstructure and shear strength properties of solid-state diffusion bonded 2024 aluminium alloy were investigated under varied surface roughness. The results indicated a high strength of 79.7 MPa for specimens electro-polished after diffusion bonding at 490°C for 120 min under pressure of 5 MPa, approximately 10 times above the minimally required shear strength of 7.9 MPa of the MIL-STD-883G specification. It was also found that the shear strength increased with increases in bonding temperature from 440°C to 490°C and bonding time from 30 to 240 min.