Effect of Remelting and Solidification Features on the Structure of Cast Fast-Cooled Ferrosilicon Inserts and Lump Ferrosilicon

An electron-microscopic study of the structural-phase composition of materials for late graphitizing modification of cast iron melt is carried out in the mold pouring bowl (FeSi75 lump (AO Chelyabinsk Electrometallurgical Integrated Plant (ChEMK))) and inside the mold (cast insert in the sump under...

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Bibliographic Details
Published in:Russian metallurgy Metally 2023-12, Vol.2023 (13), p.2012-2021
Main Authors: Boldyrev, D. A., Popova, L. I., Prasolov, S. G.
Format: Article
Language:English
Subjects:
Cast iron
Casting defects
Chemistry and Materials Science
Ferrosilicon
Foundry
Graphitization
Inserts
Materials Science
Melting
Metallic Materials
Molds
Phase composition
Solidification
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Summary:An electron-microscopic study of the structural-phase composition of materials for late graphitizing modification of cast iron melt is carried out in the mold pouring bowl (FeSi75 lump (AO Chelyabinsk Electrometallurgical Integrated Plant (ChEMK))) and inside the mold (cast insert in the sump under the riser). The shape and location of the main phases with their individual morphological features, namely, size, casting defects, etc., are analyzed. A conclusion was made about a positive effect of ferrosilicon repeated remelting in the manufacture of the cast insert.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029523700040