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Effect of micro-alloying La on precipitation behavior, mechanical properties and electrical conductivity of Al-Mg-Si alloys

文献类型：期刊论文

作者Zheng QiuJu1,2; Jiang HongXiang1,2; He Jie1,2; Zhang LiLi1; Zhao JiuZhou1,2
刊名SCIENCE CHINA-TECHNOLOGICAL SCIENCES
出版日期2021-08-09
页码11
关键词aluminum alloys micro-alloying La precipitation behavior hardness electrical conductivity
ISSN号1674-7321
DOI10.1007/s11431-021-1863-5
通讯作者Jiang HongXiang(hxjiang@imr.ac.cn) ; Zhao JiuZhou(jzzhao@imr.ac.cn)
英文摘要The rapid industrial development calls for alloys that possess higher comprehensive properties. In this study, the effect of micro-alloying La addition on the precipitation behavior during artificial aging as well as the mechanical properties and electrical conductivity of Al-Mg-Si alloys were investigated by thermal analysis, microstructural characterizations and properties tests. The results demonstrated that micro-alloying La addition does not change the whole precipitation sequence during the artificial aging of Al-Mg-Si alloys as well as the atomic structure of the precipitates. However, the higher La-vacancy binding energy as well as the strong La-Si and La-Mg interactions can decrease the solubility of Si and Mg in the Al matrix and the beta '' precipitation activation energy from 89.9 to 76.7 kJ/mol, leading to the improvement of the strength and electrical conductivity of Al-Mg-Si alloys simultaneously. The microstructural features affecting the strength and electrical conductivity were theoretically discussed in terms of the La addition.
资助项目Science and Technology Project of the Headquarters of State Grid Corporation of China[5500-201924129A-0-0-00]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000684079300002
出版者SCIENCE PRESS
资助机构Science and Technology Project of the Headquarters of State Grid Corporation of China
源URL[http://ir.imr.ac.cn/handle/321006/159321]  
专题金属研究所_中国科学院金属研究所
通讯作者Jiang HongXiang; Zhao JiuZhou
作者单位1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 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		 Zheng QiuJu,Jiang HongXiang,He Jie,et al. Effect of micro-alloying La on precipitation behavior, mechanical properties and electrical conductivity of Al-Mg-Si alloys[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2021:11.
APA Zheng QiuJu,Jiang HongXiang,He Jie,Zhang LiLi,&Zhao JiuZhou.(2021).Effect of micro-alloying La on precipitation behavior, mechanical properties and electrical conductivity of Al-Mg-Si alloys.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,11.
MLA Zheng QiuJu,et al."Effect of micro-alloying La on precipitation behavior, mechanical properties and electrical conductivity of Al-Mg-Si alloys".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2021):11.

入库方式： OAI收割

来源：金属研究所

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