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

文献类型：期刊论文

作者Jiang, Bo4,5,6; Li, Shichen3; Cao FH(曹富华)2; Song, Renguo4,5,6; Yi, Xiaoou1
刊名MATERIALS CHARACTERIZATION
出版日期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
DOI10.1016/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.
分类号一类
WOS关键词PRECIPITATION ; EVOLUTION ; MICROSTRUCTURE ; ADDITIONS
资助项目National Natural Science Foundation of China[52001033] ; Innovation and Entrepreneurship Program of Jiangsu Province[JSSCBS20210878]
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
其他责任者Cao, Fuhua ; Yi, Xiaoou
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
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 FH,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,曹富华,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.

入库方式： OAI收割

来源：力学研究所

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