Inoculation of grey cast iron with master alloys containing strontium and zirconium

• Autorzy: Soiński M. S. , Jędrecki P. , Grzesiak K.
• Języki publikacji: EN

Abstrakty

EN

The effectiveness of cast iron inoculation performed by means of three various inoculants: FeSiSr–SYSTR 75 AV, FeSiZr–SYZR 25 AV and Zircinoc was determined. The inoculants were introduced to the cast iron during the pouring of production moulds. Examination of cast iron structure and mechanical properties were carried out for specimens cut out of the collars of the cast valve bodies. It was found that the quantity of eutectic cells increased to the greatest degree if FeSiZr–SYZR 25 AV inoculant was applied in quantities of 0.20% or 0.25%. This inoculant in the mentioned quantities also increases the tensile strength to the greatest degree, rising it to the level of 250-265 MPa.

Słowa kluczowe

EN

solidification process; cast iron; inoculation; mechanical properties

PL

proces krzepnięcia; żeliwo szare; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 3 spec.
• Strony: 195--198
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Soiński M. S.

• Department of Foundry, Technical University of Częstochowa, Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Jędrecki P.

• Department of Foundry, Technical University of Częstochowa, Armii Krajowej 19, 42-200 Częstochowa, Poland

autor

Grzesiak K.

• ‘Lisie Kąty’ Cast Iron Foundry, Lisie Kąty 7, 86-302 Grudziądz, Poland

Bibliografia

• [1] Podrzucki C., Cast iron. Structure, properties, applications, Ed. ZG STOP, Cracow (1991) (in Polish).
• [2] Fraś E., Podrzucki C., Modified cast iron. 2nd edition, Ed. AGH, Cracow (1981) (in Polish).
• [3] Warchala T., Cast iron metallurgy and casting, Part 2. TU Częstochowa (1995) (in Polish).
• [4] Soiński M.S., Wawrzyniec A., Initial assessment of some selected inoculants for grey cast iron, Archives of Foundry Engineering, vol.10, issue 2/2010, pp. 155-158.
• [5] Polish Standard PN-EN ISO 945: Cast iron. Determining of features of graphite precipitates (in Polish).
• [6] Polish Standard PN-75/H-04661: Grey cast iron, nodular cast iron and malleable. Metallographic examinations. Determining of microstructure (in Polish).