Thermodynamic Analysis of the Graphite Flake Formation of Low Manganese and Sulfur Gray Cast Iron

• Autorzy: Reyes-Castellanos G. , Cruz-Ramírez A. , Colin-García E. , Gutiérrez-Pérez V. H.

Identyfikatory

DOI

10.24425/amm.2021.134782

• Języki publikacji: EN

Abstrakty

EN

Low manganese and sulfur gray irons were produced by adding inoculant base Fe-Si with small amounts of Al and Ca in the ladle. The effect of the cast thickness, inoculant amount and shakeout time of the green sand molds were studied on the graphite flake formation by microscopically techniques. A thermodynamic analysis was carried out for the cast iron produced with the FactSage 7.2 software. Stability phase diagrams were obtained for both gray cast irons to different manganese (0.1 to 0.9 wt.%) and sulfur (0.01 to 0.12 wt.%) amounts to 1150°C. It was shown that lower amounts of manganese and sulfur allow forming the 3Al₂O₃·2SiO₂, Al₂O₃, and ZrO₂ solid compounds. The thermodynamic results match with those obtained by SEM-EDS. It is possible to form MnS particles in the liquid phase when the solubility product (%Mn) × (%S) equals 0.042 and 0.039 for heats A and B, respectively.

Słowa kluczowe

EN

gray iron; inoculation; cell count; thermodynamic analysis

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 1
• Strony: 249--258
• Opis fizyczny: Bibliogr. 26 poz., fot., rys., tab., wzory

Twórcy

autor

Reyes-Castellanos G.

• Departamento de Ingeniería en Metalurgia y Materiales. Instituto Politécnico Nacional - ESIQIE. Upalm. Ciudad de México. México

autor

Cruz-Ramírez A.

• Departamento de Formación Básica Disciplinaria. Instituto Politécnico Nacional - UPIIH - ESIQIE. Pachuca, México

autor

Colin-García E.

• Departamento de Ingeniería en Metalurgia y Materiales. Instituto Politécnico Nacional - ESIQIE. Upalm. Ciudad de México. México

autor

Gutiérrez-Pérez V. H.

• Departamento de Formación Específica. Instituto Politécnico Nacional - UPIIZ, Zacatecas, México

Bibliografia

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Uwagi

1. The authors wish to thank the Institutions CONACyT, SNI and SIP-Instituto Politécnico Nacional for their permanent assistance to the Process Metallurgy Group at ESIQIE-Metallurgy and Materials Department.

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).