Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study

doi:10.1016/j.mtcomm.2024.110701

IMR OpenIR

	Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study
	Hao, Weiye 1,2; Gong, Tongzhao 1; Chen, Yun 1; Fan, Weiqi 1,2; Chen, Xing-Qiu 1
通讯作者	Chen, Yun(chenyun@imr.ac.cn)
	2024-12-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	41 页码:11
摘要	The grain size of solidification microstructure has a significant influence on the mechanical properties of castings. Generally, smaller grain size makes the strength of castings higher. Therefore, inoculation is an effective strategy to reduce grain size and improve casting performance. In this work, the phase-field method combined with the free growth model is employed to simulate the solidification of inoculated aluminum alloy with temperature gradient. The simulations indicate that a higher temperature gradient slows the progression of already nucleated grains into impingement growth and enhances the undercooling of the melt ahead of the solid-liquid interface. Hence, more inoculants have chance to get the corresponding nucleation undercooling, promoting grain nucleated sequentially along the gradient direction. These results are consistent with previous real-time observed experiments. This work may provide guidance on improvement of the theoretical models for predicting grain size of inoculated alloys and the optimization of casting process to obtain refined grains in inoculated ingots.
关键词	Phase-field simulation Solidification Al alloys Inoculants Temperature gradient
资助者	Leading Charge with Open Competition Project of Nanning City ; National Science and Technology Major Project ; Youth Talent Program of Shenyang National Laboratory for Materials Science
DOI	10.1016/j.mtcomm.2024.110701
收录类别	SCI
语种	英语
资助项目	Leading Charge with Open Competition Project of Nanning City[20231082] ; National Science and Technology Major Project[J2019-V1-0019-0134] ; Youth Talent Program of Shenyang National Laboratory for Materials Science
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001339125100001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190775
专题	中国科学院金属研究所
通讯作者	Chen, Yun
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 10016, 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	Hao, Weiye,Gong, Tongzhao,Chen, Yun,et al. Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study[J]. MATERIALS TODAY COMMUNICATIONS,2024,41:11.
APA	Hao, Weiye,Gong, Tongzhao,Chen, Yun,Fan, Weiqi,&Chen, Xing-Qiu.(2024).Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study.MATERIALS TODAY COMMUNICATIONS,41,11.
MLA	Hao, Weiye,et al."Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study".MATERIALS TODAY COMMUNICATIONS 41(2024):11.