Crystallization of Eutectics in Fe-C-V-Si Alloys

• Autorzy: Kawalec M
• Języki publikacji: EN

Abstrakty

EN

This article addresses the results of microstructural examinations of the volume solidifying Fe–C–V–Si alloys containing carbon in the range of 1.39÷1.76%, vanadium in the range of 6.77÷7.77% and silicon in the range of 0.02÷3.10. The melting charge was Armco iron, ferro-vanadium with 81.7 wt.%V, spectrally pure graphite and technically pure silica. It was shown that with increasing the silicon content, the microstructure of the resulting alloy changing. These changes include both a matrix the shape of the primary carbides and type of crystallizing eutectic. In the studied alloys was observed following eutectic: fibrous (crystallize as non-faceted/ non-faceted eutectic), complex regular (crystallize as faceted/ non-faceted eutectic), spiral (crystallize as faceted/ faceted eutectic). The results illustrated by the images of the microstructures made with an optical microscope and a scanning electron microscope.

Słowa kluczowe

EN

theory of crystallization; Fe-C-V-Si alloys; high-vanadium cast iron; microstructure; eutectic grain

PL

teoria krystalizacji; stopy Fe-C-V-Si; żeliwo wysokowanadowe; mikrostruktura; eutektyka

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 1 spec.
• Strony: 143--146
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab.

Twórcy

autor

Kawalec M

• Faculty of Foundry Engineering, Department of Engineering of Cast Alloys and Composites, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Kraków, Poland

Bibliografia

• [1] Fraś, E. (2003). Crystallization of metals. Warsaw: WNT. (in Polish).
• [2] Kopyciński, D., Kawalec, M., Szczęsny, A., Gilewski, R. & Piasny, S. (2013). Analysis of the structure and abrasive wear resistance of white cast iron with precipitates of carbides. Archives of Metallurgy and Materials. 58(3), 973-976.
• [3] Kopyciński, D. (2009). Inoculation of chromium white cast iron. Archives of Foundry Engineering. 9(1), 191-194.
• [4] Fraś, E., Kawalec, M. & Lopez H.F. (2009). Solidification microstructures and mechanical properties of high-vanadium Fe-C-V and Fe-C-V-Si alloys. Materials Science and Engineering A. 524, 193-203.
• [5] Fraś, E. & Kawalec, M. (2009). Effect of silicon on the structure and mechanical properties of high-vanadium cast iron. Archives of Foundry Engineering. 9(3), 231-234.
• [6] Kawalec, M. & Fraś, E. (2008). Structure, Mechanical Properties and Wear Resistance of Highvanadium Cast Iron. ISIJ International. 48(4), 518-524.
• [7] Kawalec, M. & Fraś, E. (2009). Abrasive wear resistance of high-vanadium cast iron. Archives of Foundry Engineering. 9(4), 103-108.
• [8] Fraś, E. & Guzik E. (1980). Primary microstructure of the Fe-C-V alloys. Archivess of Metallurgy. 25(4), 757-772.
• [9] Fraś, E., Guzik, E., Kapturkiewicz, W. & Lopez H. F. (1997). Carbide morphology in bulk and undirectionally solidified Fe-C-V eutectics. Materials Science and Technology. 13, 989-996.
• [10] Kesri, R. & Durand-Charre, M. (1988). Metallurgical structure and phase diagram of Fe-C -V system: comparison with other forming MC carbides. Materials Science and Technology. 4, 692-699.