The influence of modification and squeeze casting on properties of AlSi11 alloy castings

• Autorzy: Zyska A. , Konopka Z. , Łągiewka M. , Nadolski M.
• Języki publikacji: EN

Abstrakty

EN

The results of structural examinations and tests of mechanical properties of AlSi11 alloy, either gravity or squeeze cast, have been presented. The investigations have been carried out for both the non-modified silumin and the alloy modified with AlSr10 strontium master alloy. The measurements have been carried out for the cast plates of dimensions 200x100x25 mm. It has been found out that the modification combined with squeeze casting provides an advantageous set of strength and plastic properties [...]. The metallographic examination has revealed a significant refinement of both the primary \alfa-phase dendrites and the silicon eutectics, however being dependent on the method of modification and casting. It has been found that the refinement of the primary crystals results from the influence of external pressure exerted on the solidifying casting, while the refinement observed for silicon eutectics is an effect of combined influence of modification and squeeze casting.

Słowa kluczowe

EN

mechanical properties; aluminium alloy; squeeze casting technology; modification

PL

właściwości mechaniczne; stop aluminium; technologia prasowania; modyfikacja

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 2
• Strony: 153--156
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Zyska A.

autor

Konopka Z.

autor

Łągiewka M.

autor

Nadolski M.

• Department of Foundry, Technical University of Czestochowa, Armii Krajowej 19, 42-200 Czestochowa, Poland,

Bibliografia

• [1] J. Batysev, Crystallisation of metals and alloys under pressure, Metallurgy, Moscow (1977) (in Russian).
• [2] M. Perzyk, S. Waszkiewicz, M. Kaczorowski, A. Jopkiewicz, Foundry Engineering , WNT, Warsaw (2000) (in Polish).
• [3] J. Sobczak, Z. Lech, Theoretical and practical aspects of squeeze casting of non-ferrous metals, Foundry Review (1991) (in Polish).
• [4] J. Sobczak, Squeeze casting of aluminium alloys, Ed. Foundry Research Institute, Cracow (1988).
• [5] S. W. Kim, D. Y. Kim, W. G. Kim, K. D. Woo, The study on characteristics of heat treatment of the direct squeeze cast 7075 wrought Al alloy, Materials Science and Engineering, A304-306 (2001) 721-726.
• [6] L. J. Yang, The effect of casting temperature on the properties of squeeze cast aluminium and zinc alloys, Journal of Materials Processing Technology, vol. 140 (2003) 391-396.
• [7] T. M. Yue, Squeeze casting of high-strength aluminium wrought alloy AA7010, Journal of Materials Processing Technology, vol. 66 (1997) 179-185.
• [8] S. M. Skolianos, G. Kiourtsidis, T. Xatzifotiou, Effect of applied pressure on the microstructure and mechanical properties of squeeze-cast aluminum AA6061 alloy, Materials Science and Engineering, vol. A231 (1997) 17-24.
• [9] M. T. Abou El-khair, Microstructure characterization and tensile properties of squeeze-cast AlSiMg alloys, Materials Letters, vol. 59 (2005) 894- 900.
• [10] S. W. Youn, C. G. Kang, P. K. Seo, Thermal fluid / solidification analysis of automobile part by horizontal squeeze casting process and experimental evaluation, Journalof Materials Processing Technology, 146 (2004) 294-302.
• [11] B. Chaterje, A. A. Das, The British Foundryman, vol. 14 (1973) 118.
• [12] M. Hajdasz, Barocrystallization of metal alloys, Archives of Machine Construction Technologies, vol. 12 (1993) 45 (in Polish).
• [13] R. F. Lynch, Squeeze Casting, Material Delaware Valley Charter, ASM, Doehler-JarvisNL Industries, Toledo (1973).
• [14] M. Hajdasz, Squeeze casting, Foundry Review, vol. 43, No. 4 (1993) 110 (in Polish).
• [15] A. Zyska, Z. Konopka, M. Łągiewka, The solidification of squeeze cast AlCu4Ti alloy. Archives of Foundry Engineering vol. 7, issue 4 (2007) s. 193-196.