The low-aluminium cast iron of reduced silicon content treated with cerium mischmetal

• Autorzy: Soiński M. S. , Susek P. , Hübner K. , Mierzwa P.
• Języki publikacji: EN

Abstrakty

EN

The work presents the effect of cerium mischmetal used in quantities of 0.1 and 0.2 wt-% and ferrosilicon used in quantities from 0.5% to 1.5% on the alloy matrix and the shape of graphite precipitates in the low-aluminium cast iron from seven heats, basing on the examination of its structure. The hypereutectic cast iron of the relatively high carbon content (4.0÷4.2%) at the prior-to-treatment silicon and manganese content equal to ca. 0.6% and ca. 0.04%, respectively, has been examined. It has been found that the performed treatment leads to the change in the alloy matrix from the nearly almost pearlitic to the ferritic-pearlitic one accompanied by changes in the shape of graphite precipitates. Due to applying both of the mentioned substances in the above stated amounts the graphite precipitates in cast iron have taken the shape of nodular and vermicular ones, and no presence of flake graphite has been revealed. A quantitative analysis of the performed treatment i.e. determining the fractions of graphite precipitates of different shapes has been possible by means of a computer image analyser.

Słowa kluczowe

EN

metallography; low-aluminium cast iron; spheroidization; nodular graphite; vermicular graphite

PL

metalografia; żeliwo niskoaluminiowe; grafit kulkowy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 2
• Strony: 123--128
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Soiński M. S.

autor

Susek P.

autor

Hübner K.

autor

Mierzwa P.

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

Bibliografia

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