Efficient grain refinement of Al alloys induced by in-situ nanoparticles

doi:10.1016/j.jmst.2021.12.077

CORC > 金属研究所 > 中国科学院金属研究所

	Efficient grain refinement of Al alloys induced by in-situ nanoparticles
	Jiang, Hongxiang 1,2; Song, Yan 1,2; Zhang, Lili 2; He, Jie 1,2; Li, Shixin 1,2; Zhao, Jiuzhou 1,2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2022-10-10
卷号	124 页码:14-25
关键词	In-situ nanoparticles Aluminum alloys Grain refinement Simulation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.12.077
通讯作者	Jiang, Hongxiang(hxjiang@imr.ac.cn) ; Zhao, Jiuzhou(jzzhao@imr.ac.cn)
英文摘要	Grain refinement of Al and Al alloys during the solidification remains a long-term challenge. Here we report a general strategy for efficient grain refinement through instantaneously in-situ forming abundant nanoparticles with concentrated size distribution. The Al-Zn-Mg-Cu alloy and commercial purity Al are respectively refined by using this proposed strategy and the traditional refinement method (adding AlTi-B alloy into Al melt), and the experimental and numerical results indicate that the TiB 2 nanoparticles instantaneously form in the Al melt during the in-situ refinement process. Compared to the traditional refinement treatment method, the new approach not only can promote the high number density of the nucleation sites and narrow their size distribution, but also tremendously attenuates the agglomeration and settlement of the heterogeneous nucleation sites. It exhibits much better grain refinement ability and inhibits the decline of the grain refinement efficiency. This approach may have broad application prospect not only for the grain refinement of Al and Al alloys, but also for the grain refinement of other alloy systems, e.g. steel, magnesium, copper, and so on. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Chinese Academy of Sciences Strategic Priority Program on Space Science[XDA15013800] ; National Natural Science Foundation of China[51501207] ; Natural Science Foundation of Liaoning Province[2020-MS-005]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000788133600002
资助机构	Chinese Academy of Sciences Strategic Priority Program on Space Science ; National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172677]
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.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, 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	Jiang, Hongxiang,Song, Yan,Zhang, Lili,et al. Efficient grain refinement of Al alloys induced by in-situ nanoparticles[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,124:14-25.
APA	Jiang, Hongxiang,Song, Yan,Zhang, Lili,He, Jie,Li, Shixin,&Zhao, Jiuzhou.(2022).Efficient grain refinement of Al alloys induced by in-situ nanoparticles.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,124,14-25.
MLA	Jiang, Hongxiang,et al."Efficient grain refinement of Al alloys induced by in-situ nanoparticles".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 124(2022):14-25.