Numerical simulation of non-dendritic structure formation in Mg-Al alloy solidified with ultrasonic field

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	Numerical simulation of non-dendritic structure formation in Mg-Al alloy solidified with ultrasonic field
	Feng, XH; Zhao, FZ; Jia, HM; Li, YJ; Yang, YS; Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
刊名	ULTRASONICS SONOCHEMISTRY
	2018
卷号	40 页码:113-119
关键词	Mechanical-properties Grain-refinement Dendritic Alloys Az91 Alloy Microstructure Vibration Metal Aluminum Particle Power
ISSN号	1350-4177
英文摘要	The formation of non-dendritic structure of Mg alloy solidified with ultrasonic treatment was investigated by numerical simulation and experiment. The models of nucleation and crystal growth involved the effects of ultrasonic cavitation and acoustic streaming were built. Based on the models, the grain refinement and the microstructure change from dendrite to non-dendritic structure of a Mg-Al alloy were numerically simulated by cellular automata method. The simulation and experimental results indicated that the ultrasonic cavitation strongly contributes to the grain refinement by improving nucleation, while the acoustic streaming is mainly responsible for the formation of non-dendritic structure.; The formation of non-dendritic structure of Mg alloy solidified with ultrasonic treatment was investigated by numerical simulation and experiment. The models of nucleation and crystal growth involved the effects of ultrasonic cavitation and acoustic streaming were built. Based on the models, the grain refinement and the microstructure change from dendrite to non-dendritic structure of a Mg-Al alloy were numerically simulated by cellular automata method. The simulation and experimental results indicated that the ultrasonic cavitation strongly contributes to the grain refinement by improving nucleation, while the acoustic streaming is mainly responsible for the formation of non-dendritic structure.
学科主题	Acoustics ; Chemistry, Multidisciplinary
语种	英语
资助机构	National Natural Science Foundation of China [51274184]; National Key Research and Development Program of China [2016YFB0301105]; Guangdong Science and Technology Project [2013B091300016]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79632]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Feng, XH,Zhao, FZ,Jia, HM,et al. Numerical simulation of non-dendritic structure formation in Mg-Al alloy solidified with ultrasonic field[J]. ULTRASONICS SONOCHEMISTRY,2018,40:113-119.
APA	Feng, XH,Zhao, FZ,Jia, HM,Li, YJ,Yang, YS,&Yang, YS .(2018).Numerical simulation of non-dendritic structure formation in Mg-Al alloy solidified with ultrasonic field.ULTRASONICS SONOCHEMISTRY,40,113-119.
MLA	Feng, XH,et al."Numerical simulation of non-dendritic structure formation in Mg-Al alloy solidified with ultrasonic field".ULTRASONICS SONOCHEMISTRY 40(2018):113-119.