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Characterization, Mechanism and Control Measures of V Segregation in Continuous Casting Billet of C-Mn Steel
Ma, Xiaoping; Li, Dianzhong
2019-06-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN1073-5615
Volume50Issue:3Pages:1161-1170
AbstractTo eliminate V segregation, which significantly deteriorates the homogeneity of continuous casting steel billets, V segregation in the C-Mn steel billet was observed by microscope, SEM and EDS. The formation mechanism and control measures for V segregation were proposed. Results show that many slim V segregation strips are distributed on an inverted conical surface and that most segregation strips start from the vertex of the inverted conical surface. A series of inverted conical surfaces containing V segregation strips periodically appears along the longitudinal direction of the billet. The microstructures in the V segregation strip are fine granular structures, while the microstructures outside the V segregation strip are coarse Widmanstatten. The V segregation strip also contains many inclusions and porosities. The formation mechanism for V segregation, which is illuminated by a physical simulation of Al-5wtpctCu alloy, is attributed to the fissure in the equiaxed dendritic network torn by solidification contraction. By controlling the percentage and distribution of equiaxed grains, the V segregation in the billet of C-Mn steel is completely eliminated.
Indexed BySCI
Language英语
WOS IDWOS:000467478700007
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81052
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ma, Xiaoping,Li, Dianzhong. Characterization, Mechanism and Control Measures of V Segregation in Continuous Casting Billet of C-Mn Steel[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2019,50(3):1161-1170.
APA Ma, Xiaoping,&Li, Dianzhong.(2019).Characterization, Mechanism and Control Measures of V Segregation in Continuous Casting Billet of C-Mn Steel.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,50(3),1161-1170.
MLA Ma, Xiaoping,et al."Characterization, Mechanism and Control Measures of V Segregation in Continuous Casting Billet of C-Mn Steel".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 50.3(2019):1161-1170.
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