A new Al5Cu6(Li,Mg)2 cubic phase in an Al-Cu-Li-Mg-X alloy

doi:10.1016/j.matchar.2022.111971

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	A new Al5Cu6(Li,Mg)2 cubic phase in an Al-Cu-Li-Mg-X alloy
	Jiang, Bo 4,5,6; Li, Shichen 3; Cao, Fuhua 2; Song, Renguo 4,5,6; Yi, Xiaoou 1
刊名	MATERIALS CHARACTERIZATION
	2022-07-01
卷号	189 页码:5
关键词	Al 5 Cu 6 (Li Precipitation Formation enthalpy Alloy Al5Cu6(Li Mg)2
ISSN号	1044-5803
DOI	10.1016/j.matchar.2022.111971
通讯作者	Cao, Fuhua(caofuhua@imech.ac.cn) ; Yi, Xiaoou(xiaoouyi@ustb.edu.cn)
英文摘要	Among cubic metals, the cubic phase has excellent heat-resistance potential owing to its cube-on-cube orientation relationship with the matrix. In this study, a new cubic phase, Al5Cu6(Li,Mg)2, was identified in an Al-CuLi-Mg-X alloy after ageing at 165 degrees C for 15 h. It has a Pm3 structure similar to that of both Al5Cu6Li2 and Al5Cu6Mg2. The density functional theory (DFT) calculations noted that the precipitation of Al5Cu6Li2 is more energetically favorable than that of Al5Cu6Mg2 in the Al-Cu-Li-Mg-X alloy. Moreover, the formation enthalpy may be further reduced when the Mg atoms replace some Li sites in Al5Cu6Li2, in favor of the formation of Al5Cu6(Li,Mg)2.
资助项目	National Natural Science Foundation of China[52001033] ; Innovation and Entrepreneurship Program of Jiangsu Province[JSSCBS20210878]
WOS关键词	PRECIPITATION ; EVOLUTION ; MICROSTRUCTURE ; ADDITIONS
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000811287000001
资助机构	National Natural Science Foundation of China ; Innovation and Entrepreneurship Program of Jiangsu Province
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89733]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Cao, Fuhua; Yi, Xiaoou
作者单位	1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 4.Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & En, Changzhou 213164, Jiangsu, Peoples R China 5.Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Jiangsu, Peoples R China 6.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Bo,Li, Shichen,Cao, Fuhua,et al. A new Al5Cu6(Li,Mg)2 cubic phase in an Al-Cu-Li-Mg-X alloy[J]. MATERIALS CHARACTERIZATION,2022,189:5.
APA	Jiang, Bo,Li, Shichen,Cao, Fuhua,Song, Renguo,&Yi, Xiaoou.(2022).A new Al5Cu6(Li,Mg)2 cubic phase in an Al-Cu-Li-Mg-X alloy.MATERIALS CHARACTERIZATION,189,5.
MLA	Jiang, Bo,et al."A new Al5Cu6(Li,Mg)2 cubic phase in an Al-Cu-Li-Mg-X alloy".MATERIALS CHARACTERIZATION 189(2022):5.