Studies of structural and mechanical properties of aluminum skeleton castings

• Autorzy: Cholewa M. , Dziuba-Kałuża M.
• Języki publikacji: EN

Abstrakty

EN

Skeleton castings were manufactured in accordance to elaborated production technology. The subject of the research was the microstructural analysis of non - monolithic castings. Analysis of metallographic specimens and quantitative analysis of silicon crystals and secondary dendrite-arm spacing analysis of solution \alfa were performed. Studies were executed for typical regions of skeleton castings. The regions were diversified regarding the cooling rate. The greatest value of compression strength were observed for casting manufactured according to technological conditions: pouring temperature Tpour 1013 K, temperature of the mould Tmould 333 K and height of the gating system h - 265 mm. Technological conditions and modification treatment were determined on base of advantageous structural properties (high homogeneity and refinement). On basis of the research authors confirmed that in applied conditions of solidification advantageous structure of AlSi11 alloy was obtained. The article showed the method of structure design of AlSi11 alloys skeleton castings, which was essential to obtain favorable operating properties of skeleton castings in future technical applications.

Słowa kluczowe

EN

skeleton casting; structure; compressive strength; AlSi alloy

PL

odlew szkieletowy; wytrzymałość na ściskanie; stop Al-Si

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 3
• Strony: 29--34
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Cholewa M.

autor

Dziuba-Kałuża M.

• Foundry Department, Silesian University of Technology, Towarowa 7, 44-100 Gliwice, Poland,

Bibliografia

• [1] M. Cholewa, M. Dziuba Kałuża: Closed aluminum skeleton casting, Archives of Foundry Engineering 2008, vol. 8, Special Issue 1, p. 53-56 (in English).
• [2] Norm PN EN - 1706:2001 - Casting aluminium alloys.
• [3] S. Pietrowski, Complex silumins, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) p. 101-105 (in English).
• [4] S. Pietrowski, Siluminy, Lodz University of Technology, Press, Łódź, 2001 (in Polish).
• [5] Ł. Bernat; J. Hajkowski; M. Hajkowski, Microstructure and porosity of aluminum alloy casting whereas mechanical properties, Archives of foundry, 2006, No 22, p. 41-48 (in Polish).
• [6] J. Szymszal, E. Krzemień, T. Zając, Modyfication of metals and alloys, Silesian University Publishers, Gliwice, 1984 (in Polish).
• [7] J. Szajnar, T. Wróbel, Modyfication of pure aluminium structure by internal and external factors. Archives of foundry, No 22, vol. 6, 2006 (in Polish).
• [8] J. Szajnar, T. Wróbel, Inoculation of primary structure of pure aluminium, Journal of Achievements in Materials and Manufacturing Engineering vol. 20, issue 1-2, (2007) p. 283-286 (in English).
• [9] J. Szajnar, T. Wróbel, Methods of inoculation of pure aluminium structure, Journal of Achievements in Materials and Manufacturing Engineering vol. 27, issue 1, (2008), p. 95-98 (in English).
• [10] Z. Poniewierski, Crystallisation, structure and properties of silumines, WNT, Warsaw, 1989 (in Polish).
• [11] H. P. Degischer, B. Kriszt, Handbook of cellular metal, production, processing, applications, Viley VCH Verlag GmbH & Co. KGaA, 2002 (in English).
• [12] M. Cholewa, M. Dziuba Kałuża, Structural analysis of aluminum skeleton castings, Archives of Foundry Engineering, vol. 8, No. 3, (2008), p. 29-36 (in English).
• [13] M. Cholewa, M. Dziuba Kałuża, Microstructure quantitative analysis of aluminium skeleton castings, Archives of Foundry Engineering, vol. 8, No. 4, (2008), p. 241-250 (in English).
• [14] M. Cholewa, M. Kondracki, Analysis of structural properties for AlSi11 alloy with use of thermal derivative gradient analysis TDGA, vol. 8, Special Issue 3, (2008), p. 84 - 88 (in English).
• [15] M. Cholewa, M. Kondracki, M. Dziuba, Derivative-gradient thermal analysis in casting properties forecasting, Journal of Achievements in Materials and Manufacturing Engineering, vol. 20, issue 1/2, (2007), p. 339-342 (in English).