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Steel in Translation

Erschienen in:

01.11.2023

Features of the Distribution of Nonmetallic Inclusions in Continuously Cast Billets Made of Sulfur-Containing Steel C45E

verfasst von: D. V. Rutskii, N. A. Zyuban, M. V. Kirilichev, M. S. Nikitin, M. Yu. Chubukov

Erschienen in: Steel in Translation | Ausgabe 11/2023

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Abstract

The features of the distribution of nonmetallic inclusions (NIs) along the cross-section of the 360 × 360-mm continuous cast billet (CCB) made of C45E steel are considered. Due to the high sulfur content in C45E steel, the proportion of sulfide inclusions is 54% and of oxysulfide inclusions, 35%. NIs are nonuniformly distributed along the CCB cross-section. High content of refractory oxide (refractory calcium aluminates CaO⋅Al₂O₃ and spinels MgO⋅Al₂O₃) and oxysulfide NIs has been found in the surface layer of small differently oriented crystals, which is associated with the formation of oxide inclusions at the stage of melting, in the shell of which CaS/MnS sulfides are formed. Further solidification of the CCB leads to a decrease in the content of oxysulfide inclusions along the cross-section of the billet due to their movement to the axial zone, where the number of sulfide inclusions increases.

Vorheriger Artikel Studies on Thermochemical Processes Occurring under the Roasting of Siderite Ores

Nächster Artikel Performance Features of Submerged Entry Nozzle in High-Speed Casting on Thin-Slab CC Machine

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Titel: Features of the Distribution of Nonmetallic Inclusions in Continuously Cast Billets Made of Sulfur-Containing Steel C45E
verfasst von: D. V. Rutskii
N. A. Zyuban
M. V. Kirilichev
M. S. Nikitin
M. Yu. Chubukov
Publikationsdatum: 01.11.2023
Verlag: Pleiades Publishing
Erschienen in: Steel in Translation / Ausgabe 11/2023
Print ISSN: 0967-0912
Elektronische ISSN: 1935-0988
DOI: https://doi.org/10.3103/S096709122311027X

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