The phosphorus interaction on the process forming of primary structure of hypereutectic silumins

• Autorzy: Piątkowski J.
• Języki publikacji: EN

Abstrakty

EN

In this work the results of investigations concerning the hypereutectic silumins to be used as engine ports have been show. New idea on the interaction mechanism of phosphorus during modification of hypereutectic silumins has been shown. According to this hypothesis the influence of phosphorus is the result of local supercooling caused by evaporation and decompression of phosphorus steam. On the base to propose schematic diagram of the origin of local supercooling as a result of evaporation of phosphorus un microareas with a diversified concentration of silicon of the investigated Al-Si alloys.

Słowa kluczowe

EN

theoretical basis; crystallization process; modification; hypoeutectic silumins

PL

podstawy teoretyczne; krystalizacja; modyfikacja; silumin nadeutektyczny

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 3
• Strony: 125--128
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Piątkowski J.

• Chair of Metal Alloys and Composites Engineering, Silesian University of Technology Krasińskiego 8, 40-019 Katowice, Poland,

Bibliografia

• [1] Z. Poniewierski, Solidification, structure and properties of silumins. Warsaw WNT 1989 (in Polish).
• [2] Z. Górny, J. Sobczak, Non-ferrous metals based novel materiale In foundry practice. ZA-PIS Cracow 2005.
• [3] S. Pietrowski, The solidification of metallic materials. WPŁ, Łódź 1993 (in Polish).
• [4] S. Pietrowski, Piston silumins. A Monograph. Solidification of Metals and Alloys, Polish Academy of Sciences, 1997 (in Polish).
• [5] P. Borgeau, F. Dabel, M. Drouzy, Structure et modification des alliages aluminium-silicium voisins de l'eutectique. 34'Congres International de Fonderie, Paris (1967).
• [6] A. Ohno, The solidification of metals. Tokyo, Chijn Shokan Co 1976, (in English).
• [7] G. M. Kimstacz, O fizykochemiczeskim miechanizmie modificirovanija spłavov Al-Si. Mietałłoviedienije i Tiermineskaja Obrabotka Mietałłov, 3, 1999 (in English).
• [8] F. Binczyk, J. Piątkowski, Investigation of phenomena accompanying the solidification of modified AK20 silumin examined by the DTA and ATD method of analysis. IV International Conference, Kołobrzeg, 1998 (in Polish).
• [9] J. Piątkowski, The dissertation scientific paper. Silesian University of Technology, Katowice, 2000 (in Polish).
• [10] F. Binczyk, J. Piątkowski, Hypothesis of AK20 silumin modification with phosphorus. III International Foundry Conference, Gliwice - Bielsko-Biała 1998 (in Polish).
• [11] S. Pietrowski, Silumins. Łódź 2001 (in Polish).
• [12] O. Barabasz, J. Kowal, Krystalicieskaja struktura i svojstva mietałłov i spłavov. Naukowa Dumka, Kijev 1986.