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Influence of Mn on the negative natural aging effect in 6082 Al alloy
Cui, Z. J.1,2; Jiang, H. C.1; Zhang, D.1,2; Song, Y. Y.1; Yan, D. S.1; Rong, L. J.1
Corresponding AuthorSong, Y. Y.(songyuanyuan@imr.ac.cn) ; Rong, L. J.(ljrong@imr.ac.cn)
2020-08-19
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume793Pages:9
AbstractThe microstructural evolution and mechanical properties of the 6082 alloys with different Mn content were systematically investigated to deeply understand the influence of Mn on the negative natural aging (NA) effect. It is found that alpha-Al(Mn,Fe)Si precipitated during homogenization is larger in size and less in amount in the alloy with lower Mn content, resulting in the less consumption of Si to create a relatively Si-rich environment in the matrix. The true Mg/Si ratio of alloy with higher Mn content is higher so that the alloy possesses a stronger negative natural aging effect. Additionally, four types of aggregates including clusters, GP zones, elongated ss '' and ss' are present in the microstructures aged at 175 degrees C/8 h which is the peak artificial aging (AA) treatment in the two alloys. The number density of ss '' and the total number density of the aggregates in alloy with lower Mn content is always higher than that in alloy with higher Mn content at the same heat treatment condition, which lead to the higher hardness and strength.
Keyword6082 Al alloy alpha-Al(Mn,Fe)Si Natural aging Clusters Precipitates
Funding OrganizationNational Key R&D Program of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Shenyang Key R&D and technology transfer program
DOI10.1016/j.msea.2020.139874
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFB1200602] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB22020000] ; Shenyang Key R&D and technology transfer program[Z19-1-004]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000578957200034
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141070
Collection中国科学院金属研究所
Corresponding AuthorSong, Y. Y.; Rong, L. J.
Affiliation1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Cui, Z. J.,Jiang, H. C.,Zhang, D.,et al. Influence of Mn on the negative natural aging effect in 6082 Al alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,793:9.
APA Cui, Z. J.,Jiang, H. C.,Zhang, D.,Song, Y. Y.,Yan, D. S.,&Rong, L. J..(2020).Influence of Mn on the negative natural aging effect in 6082 Al alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,793,9.
MLA Cui, Z. J.,et al."Influence of Mn on the negative natural aging effect in 6082 Al alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 793(2020):9.
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