The Influences of Micro-Alloying Element Sn and Magnetic Field on the Microstructure Evolution of Al-Bi Immiscible Alloys

doi:10.3390/met13111867

IMR OpenIR

	The Influences of Micro-Alloying Element Sn and Magnetic Field on the Microstructure Evolution of Al-Bi Immiscible Alloys
	Chen, Shu 1; Jiang, Hongxiang 2; Zhao, Jiuzhou 2
通讯作者	Jiang, Hongxiang(hxjiang@imr.ac.cn)
	2023-11-01
发表期刊	METALS
卷号	13 期号:11 页码:13
摘要	An investigation was conducted through directional solidification experiments to explore the impact of micro-alloying element Sn and a magnetic field on the solidification behavior of immiscible Al-Bi alloys, as well as the combined effect of Sn and the magnetic field. Experimental results show that the size distribution of the dispersed particles in the low-speed solidified Al-3.4 wt.%Bi alloy presents two peaks, while it only shows one peak when solidified at a relatively high speed. The addition of Sn not only can enhance the nucleation rate and the number density of the Bi-rich droplets in the sample, but also decrease the Marangoni migration velocity and the axial resultant velocity of minority phase droplets in front of the solidification interface. Thereby it promotes the formation of Al-Bi alloys with a well-dispersed microstructure. A static magnetic field with the strength of 0.2 T increases the number density of the dispersed particles and decreases the average size and the size distribution width of the dispersed particles. Under the effect of Sn addition and static magnetic field, the average radius of the dispersed particles R and the solidification velocity V0 satisfy R proportional to V0-1/3 when the alloy was solidified at a relatively low velocity, R and V0 satisfy R proportional to V0-1/2 when the alloy is solidified at a high velocity.
关键词	alloying element magnetic field solidification microstructure evolution
资助者	The National Key Research and Development Program of China
DOI	10.3390/met13111867
收录类别	SCI
语种	英语
资助项目	The National Key Research and Development Program of China
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001119571600001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177197
专题	中国科学院金属研究所
通讯作者	Jiang, Hongxiang
作者单位	1.Shenyang Univ, Coll Mech Engn, Shenyang 110044, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shu,Jiang, Hongxiang,Zhao, Jiuzhou. The Influences of Micro-Alloying Element Sn and Magnetic Field on the Microstructure Evolution of Al-Bi Immiscible Alloys[J]. METALS,2023,13(11):13.
APA	Chen, Shu,Jiang, Hongxiang,&Zhao, Jiuzhou.(2023).The Influences of Micro-Alloying Element Sn and Magnetic Field on the Microstructure Evolution of Al-Bi Immiscible Alloys.METALS,13(11),13.
MLA	Chen, Shu,et al."The Influences of Micro-Alloying Element Sn and Magnetic Field on the Microstructure Evolution of Al-Bi Immiscible Alloys".METALS 13.11(2023):13.