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Multi-scale dendritic patterns sequentially superimposed in a primary semi-solid matrix
Ma, Xiaoping; Li, Dianzhong
Corresponding AuthorMa, Xiaoping(xpma@imr.ac.cn)
2022-04-30
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume107Pages:26-33
AbstractThe 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.
KeywordSolidification Dendrite Microstructures Microsegregation Macrosegregation
Funding OrganizationYouth Talent Project of Shenyang National Laboratory for Materials Science
DOI10.1016/j.jmst.2021.08.027
Indexed BySCI
Language英语
Funding ProjectYouth Talent Project of Shenyang National Laboratory for Materials Science[L2019F46] ; Youth Talent Project of Shenyang National Laboratory for Materials Science[TC190A4DA/35]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000773303300003
PublisherJOURNAL MATER SCI TECHNOL
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173036
Collection中国科学院金属研究所
Corresponding AuthorMa, Xiaoping
AffiliationChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China
Recommended Citation
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.
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