Phase Field Simulation of Effect of Grain Boundary Diffusion on alpha Phase Dissolution

IMR OpenIR

	Phase Field Simulation of Effect of Grain Boundary Diffusion on alpha Phase Dissolution
	Liu Tao 1; Yang Mei 1; Wang Gang 2; Wang Lu 1; Xu Dongsheng 3
通讯作者	Yang Mei(myang@jsut.edu.cn)
	2019-09-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	48 期号:9 页码:2864-2872
摘要	In order to study the phase transformations in consideration of the grain boundary diffusion, the diffusion along grain boundary was incorporated in the quantitative phase field model coupled with the Kim-Kim-Suzuki (KKS). The effect of the number of grain boundaries, the spatial distribution and size distribution (PSD) of alpha phase on the alpha phase dissolution was researched. The results show that grain boundaries are a faster element diffusive path. The larger the number of grain boundaries is, the faster the kinetics of alpha phase dissolution is. Namely, the kinetics of alpha phase dissolution is fastest when the phase is located at triple junctions. However, the dissolution kinetics is of little difference when alpha phase is on the grain boundary and distributed uniformly in the matrix. Compared to the phase dissolution rate in two-dimensional condition, the effect of the grain boundary diffusion on dissolution kinetics is more obvious in three-dimensional condition. When phase transformation is dominated by bulk diffusion of solute, the spatial distribution of alpha phase is a main factor affecting the alpha phase dissolution. But when phase transformation is dominated by grain boundary diffusion of solute, the effects of other size distributions on the dissolution of alpha phase are not obvious except for uniform PSD.
关键词	grain boundary diffusion phase field model dissolution the spatial distribution of phase phase size distribution
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000488891300021
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/135653
专题	中国科学院金属研究所
通讯作者	Yang Mei
作者单位	1.Jiangsu Univ Technol, Changzhou 213001, Peoples R China 2.South China Univ Technol, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu Tao,Yang Mei,Wang Gang,et al. Phase Field Simulation of Effect of Grain Boundary Diffusion on alpha Phase Dissolution[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(9):2864-2872.
APA	Liu Tao,Yang Mei,Wang Gang,Wang Lu,&Xu Dongsheng.(2019).Phase Field Simulation of Effect of Grain Boundary Diffusion on alpha Phase Dissolution.RARE METAL MATERIALS AND ENGINEERING,48(9),2864-2872.
MLA	Liu Tao,et al."Phase Field Simulation of Effect of Grain Boundary Diffusion on alpha Phase Dissolution".RARE METAL MATERIALS AND ENGINEERING 48.9(2019):2864-2872.