The influence of selected elements on mechanical properties of ferritic ductile iron

• Autorzy: Soiński, M. S. , Derda, A.
• Języki publikacji: EN

Abstrakty

EN

An attempt of determining the relationship between changes of quantities of elements in the alloy (such as C, Si, Mn, P, S, Cr, Ni, Cu, Mg) and the basic mechanical properties of the material (R_m, R_p,0,2. A₅, HB, KCV) has been undertaken on the basis of data concerning production of ferritic ductile iron of the EN-GJS-400-18U-LT grade (according to PN-EN 1563 Standard) from about 300 heats. The examined cast iron has been produced by one of the domestic foundries in the induction furnace of medium frequency, spheroidized by the plunging method and then modified by the in-stream method while transferring the cast iron from the treatment vessel to the pouring ladle. Castings have been heat treated in order to achieve the fully ferritic structure. The analysis of the collected data has shown that even small changes in content of a series of elements (falling within the limits required for production of the ductile iron) can lead to the statistically significant increases or decreases in mechanical properties of ferritic ductile iron.

Słowa kluczowe

PL

właściwości mechaniczne; żeliwo sferoidalne ferrytyczne; skład chemiczny; analiza regresji

EN

mechanical properties; ferritic ductile iron; chemical composition; regression analysis

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 1 spec.
• Strony: 303--308
• Opis fizyczny: Bibliogr 14 poz., tab., wykr.

Twórcy

autor

Soiński, M. S.

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

autor

Derda, A.

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

Bibliografia

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• [2] Polish Standard PN-EN 1563:2000, Casting. Ductile cast iron (in Polish).
• [3] T. Warchala, Cast iron metallurgy and casting, Part 1: Cast iron structure and properties, TU Częstochowa (1988) (in Polish).
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• [6] M. S. Soiński, M. Mitko, S. Tomczyński, J. Szczerba, E. Gołąbek: Nodular cast iron for working in the low temperature, Acta Metallurgica Slovaca, vol. 8, No. 2/2002 (2/2) (2002) 28-32 (in Polish).
• [7] M. S. Soiński, M. Mitko, S. Tomczyński, Ł. Bronik, (mpact strength of ferritic nodular cast iron, Archives of Foundry, vol. 4, No. 11 (2004) 190-195 (in Polish).
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• [10] C. Podrzucki, C. Kalata, Cast iron metallurgy and casting Śląsk, Katowice (1971) (in Polish).
• [11] M. S. Soiński, R. Muzyka, Impact strength of ferritic-pearlitic nodular cast iron, Archives of Foundry, vol. 6, No. 19 (2006) 295-300 (in Polish).
• [12] M. S. Soiński, R. Muzyka, Impact resistance of nodular cast iron after subjected to graphitizing for the purpose of obtaining ferritic structure, Archives of Foundry, vol. 6, No. 22 (2006) 441-448 (in Polish).
• [13] Engineer’s Handbook. Casting, vol. 2, WNT, Warsaw (1986) (in Polish).
• [14] W. Volk, Applied statistics for engineers, WNT, Warsaw (1973) (in Polish).