Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix

doi:10.1016/j.jmst.2021.08.027

CORC > 金属研究所 > 中国科学院金属研究所

	Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix
	Ma, Xiaoping; Li, Dianzhong
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2022-04-30
卷号	107 页码:26-33
关键词	Solidification Dendrite Microstructures Microsegregation Macrosegregation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.08.027
通讯作者	Ma, Xiaoping(xpma@imr.ac.cn)
英文摘要	The principle and control for solidification present crucial challenges. Through in situ and real time observation on the solidification of M50 bearing steel, here we discovered that the base of conventional dendritic arms is constituted by a primary semi-solid matrix. Due to the superimposition of temperature fluctuations from the large to the subtle scale, multi-scale dendritic patterns will sequentially emerge and evolve in the primary semi-solid matrix. These findings redefine the essence of multi-scale dendrites as the multi-scale segregation patterns in the primary semi-solid matrix, reconstitute the time and space sequence in the formation of multi-scale dendrites, and reveal the superimposition of temperature fluctuation as the driving principle. These new understandings will fundamentally influence the solidification field. These results also indicate important engineering applications, such as designing multi-scale dendrites, controlling the dendritic segregation and eliminating the detrimental eutectics.
资助项目	Youth Talent Project of Shenyang National Laboratory for Materials Science[L2019F46] ; Youth Talent Project of Shenyang National Laboratory for Materials Science[TC190A4DA/35]
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:000773303300003
资助机构	Youth Talent Project of Shenyang National Laboratory for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173035]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ma, Xiaoping
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaoping,Li, Dianzhong. Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,107:26-33.
APA	Ma, Xiaoping,&Li, Dianzhong.(2022).Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,107,26-33.
MLA	Ma, Xiaoping,et al."Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 107(2022):26-33.