Plasticity of the AlSi9Mg alloy modified with Na, F and Cl compounds

• Autorzy: Lipiński, T.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of an experiment investigating the structure and the percent elongation of an AlSi9Mg alloy modified with NaCl, Na₃AlF₆ and NaF compounds. The alloy was modified in a crucible. The experiment had a factorial design of 2³. Strength tests were performed on specimens with a diameter of 8 mm collected from a [phi]16x140 mm cylinder cast in a sand mould. The applied modifier improved the studied alloy's eutectic properties and changed its percent elongation. Percent elongation values are presented in graphic form.

Słowa kluczowe

PL

stop Al-Si; silumin; modyfikacje

EN

alloy Al-Si; silumin; modification; percentage elongation

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 2
• Strony: 75--78
• Opis fizyczny: Bibliogr. 15 poz., il., rys.

Twórcy

autor

Lipiński, T.

• University of Warmia and Mazury in Olsztyn, The Faculty of Technical Sciences Department of Materials Technology, Oczapowskiego 11, 10-957 Olsztyn, Poland ,

Bibliografia

• [1] S. Pietrowski: Silumins. 2001 Łódź.
• [2] Z. Górny: Casting alloys of non - ferrous metals.1992 WNT Warsaw.
• [3] L.F. Mondelfo: Aluminium alloys. Structure and properties. Butter Wooths. 1976 London Boston.
• [4] S. Michna, I. Lukac, V. Ocenasek, R. Koreny, J. Drapala, H. Schinder, A. Miskulowa: Encyclopaedia of aluminium. 2005 Presov.
• [5] M. Hajnowski: The dependence of basic mechanical proprieties from crystalline structure of casts from hypo-eutectic of Al-Si alloys. Archives of Foundry 1, 2001, 126- 133.
• [6] T. Lipiński: Quality managment silumin Al-7%Si and Al- 12%Si alloy by Al, Mg and NaNO3. Quality of materials and products. Saint – Petersburg 2008, 45-50.
• [7] T. Lipiński: Extension AlSi7Mg alloy control by exothermic mixture processing. Archives of Foundry 18, 2006, 85-90.
• [8] T. Lipiński: Modification of Al-Si alloys with the use of a homogenous modifiers. Archives of Mettalurgy and Materials, 53/1 (2008), 193-197.
• [9] T. Lipiński, A. Góral, P. Mikołajczyk, M. Cudakiewicz, A. Wach: Effect of Environment-Friendly Modification of Al- 12%Si alloy on Its Structure. Technical Sciences 11 (2008), 301-311.
• [10] T. Lipiński: Influence of modifier on base Al and Si on structure and elongation Al-7%Si alloy. Archives of Foundry Engineering, 8/3, 2008, 55-58
• [11] W. Wołczyński, K. Rabczak, Sz. Środa: Anomalous segregation of silicon within oriented (Al)-lamellae of the Al-Si Eutectic Alloy. Mass and Charge Transport in Inorganic Materials. Fundamentals to Device. 2000, 213- 220.
• [12] W. Wołczyński, R. Cupryś: The analisis of the influence of the gibbs free energy onto the lamella-rod transition in Al-Si alloy. Archives of Metallurgy 44 1999, 339-353.
• [13] S. Pietrowski: Crystallization structure and propriety piston silumins, 1999 Łódź.
• [14] F. Romankiewicz: Modification AK20 silumin by complex additions. Archiwum Odlewnictwa nr 1 2001, 333-339.
• [15] S.C. Flood, J.D. Hunt: Modification of Al-Si eutectic alloys with Na. Metall Scence 15 198, 287-294.