Influence of Mn on the negative natural aging effect in 6082 Al alloy

doi:10.1016/j.msea.2020.139874

IMR OpenIR

	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
通讯作者	Song, Y. Y.(songyuanyuan@imr.ac.cn) ; Rong, L. J.(ljrong@imr.ac.cn)
	2020-08-19
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	793 页码:9
摘要	The 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.
关键词	6082 Al alloy alpha-Al(Mn,Fe)Si Natural aging Clusters Precipitates
资助者	National Key R&D Program of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Shenyang Key R&D and technology transfer program
DOI	10.1016/j.msea.2020.139874
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000578957200034
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/141070
专题	中国科学院金属研究所
通讯作者	Song, Y. Y.; Rong, L. J.
作者单位	1.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
推荐引用方式 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.