The influence of the solidification conditions on the structure and mechanical properties of high-strength 1960 (in Russia) aluminum alloy

G.R. Khalikova1, V.G. Trifonov1
1Institute for Metals Superplasticity Problems RAS, Khalturin St. 39, 450001 Ufa
The effects of the die temperature and pressure applied to the liquid melt on structural changes and mechanical properties of wrought 1960 alloy (in Russia) obtained by squeeze casting were investigated. It was shown that a dendrite structure containing primary intermetallic phase particles is formed in the alloy during squeeze casting at the die temperatures 200 and 400 oC and applied pressures 90 and 350 MPa. At that the cast billets without any macroscopic defects can be obtained only at the die temperature of 400 oC. At this temperature, the volume fraction of inter-metallic phase particles was 9%, and the size of dendrite crystals are increased from ~500 to ~600 µm with increasing of the applied pressure. The strength properties of alloy are raised with increasing of die temperatures and applied pressure. At this the ductility of alloy was the less 1 %.
Received: 25 September 2012   Revised: 05 October 2012   Accepted: 15 October 2012
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Promishlennie aluminievie splavi. Sprav. izd. AlievaS.G., Al’tman M.B., Ambarzumyan S.M. et al. 2-nd eddition,Moscow, Metallurgiya (1984) 528 p. (in Russian)[Промышленные алюминиевые сплавы. Справ. изд.Алиева С.Г., Альтман М.Б., Амбарцумян С.М. 2-е изд.,пере-раб. и доп., М: Металлургия (1984) 528 с.].
Aluminum. Properties and physical metallurgy. Ed. by J.E.Hatch. Metals Park, Ohio, American Society for Metals,1984, 363 p. [Алюминий: свойства и физическоеметалловедение. Справ. изд. Перев. с англ. Под ред.Хэтча Дж.Е.. М., Металлургия (1989) 422 с.].
S–W. Kim, G. Durrant, J–H. Lee, B Cantor. Journal ofMaterials Synthesis and Processing 6(2), 75 (1998).
S–W. Kim, G. Durrant, J–H. Lee, B Cantor. J. Mater. Sci.34, 1873 (1999).
G.A. Chadwick, T.M. Yue. Metals and Materials 5(1), 6(1989).
S.W. Kim, D.Y. Kim, W.G. Kim, K.D. Woo. J. Mater. Sci.A304-306, 721 (2001).
T.M. Yue, H.U. Ha, N.J. Musson. J. Mater. Sci. 30, 2277(1995).
T.M. Yue. J. Mater. Sci. 25, 175 (1990).
M.R. Chomashchi, A. Vikhrov. J. Mater. Process. Tech.101, 1 (2000).
G. Williams. Foundry Trade Journal 2, 66 (1984).
V.G. Trifonov, G.R. Khalikova. Materialovedenie 7, 37(2009) (in Russian) [В.Г. Трифонов, Г.Р. Халикова.Материаловедение 7, 37 (2009)].
M. Fudjii, N. Fudjii, S. Morimoto, S. Okada. Journal ofJapan Institute of Light Metals 36, 353 (1986).
M. Gallerneault, G. Durrant, B. Cantor. Metall. Mater.Trans. A27, 4121 (1996).
L.F. Mondolfo in: Aluminum alloys: structure and properties.Butterworths, London (1976) 312 p.
T.N. Lipchin. Structura i svo’stva cvetnikh splavov,zatverdevshikh pod davleniem. Moscow: Metallurgiya(1994) 128 p. (in Russian) [Т.Н. Липчин. Структура исвойства цветных сплавов, затвердевших под давле-нием. М: Металлургия (1994) 128 c.].
A.I. Batishev. Crystallization of metals and alloys underpressure. Moscow, Metallurgy (1990) 144 p. (in Russian)[А.И. Батышев. Кристаллизация металлов и сплавовпод давлением. М: Металлургия (1990) 144 c.].