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Influence of Technology Parameters on Properties of AA6061/SiC Composites Produced By Kobo Method

Authors: J. Wozniak, M. Kostecki, K. Broniszewski, W. Bochniak, A. Olszyna


The influence of extrusion parameters on surface quality and properties of AA6061+x% vol. SiC (x = 0; 2,5; 5; 7,5;10) composites was discussed in this paper. The averages size of AA6061 and SiC particles were 10.6 μm and 0.42 μm, respectively. Two series of composites (I - compacts were preheated at extrusion temperature through 0.5 h and cooled by water directly after process; II - compacts were preheated through 3 hours and were not cooled) were consolidated via powder metallurgy processing and extruded by KoBo method. High values of density for both series of composites were achieved. Better surface quality was observed for II series of composites. Moreover, for these composites lower (compared to I series) but more uniform strength properties over the cross-section of the bar were noticed. Microstructure and Young-s modulus investigations were made.

Keywords: Microstructure, Metal Matrix Composites, Aluminum Alloy, extrusion

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[1] Hirsch, J., Automotive Trends in Aluminium - The European Perspective. Materials Forum, 2004, 28, p. 15-23.
[2] Š. Michna, I.L., P. Louda, et al., Aluminium materials and technologies from A to Z. 2007, Prešov: Adin, s. r. o.
[3] Kaufman, J.G., Introduction to Aluminum Alloys and Tempers. 2000: ASM International.
[4] W.S. Miller, L.Z., J. Bottema, A.J. Wittebrood, P. De Smet, A. Haszler, A. Vieregge, Recent development in aluminium alloys for the automotive industry. Materials Science and Engineering, 2000. A280, p. 37-49.
[5] A. Heinz, A.H., C. Keidel, S. Moldenhauer, R. Benedictus, W.S. Miller, Recent development in aluminium alloys for aerospace applications. Materials Science and Engineering, 2000, A280, p. 102-107.
[6] Miracle, D.B., Metal matrix composites - From science to technological significance. Composites Science and Technology, 2005. 65: p. 2526- 2540.
[7] G. S. Cole, A.M.S., Lightweight Materials for Automotive Applications. Materials Characterization, 1995. 35: p. 3-9.
[8] V. Jayaseelan, K. Kalaichelvan, M. Kannan, S. Vijay Ananth, Extrusion Characterizes of Al/SiC by different Manufacturing Process, International Journal Of Applied Engineering Research, 2010, vol. 1, No1.
[9] A. Chennakesava Reddy, E. Zitoun, Matrix Al-alloys for silicon carbide particle reinforced metal matrix composites, Indian Journal of Science and Technology, 2010, vol. 3, No. 12
[10] M. K. Aghajanian, M. A. Rocazella, J. T. Burke, S. D. Keck, The fabrication of metal matrix composites by a pressureless infiltration technique, Journal of Materials Science, 1991, 26, p. 447 454
[11] Y. Zhou, J. Li, S. Nutt, E. J. Lavernia, Spray forming of ultra-fine SiC particle reinforced 5182 Al-Mg, Journal of Materials Science, 2000, 35, p. 4015 - 4023
[12] S. H. Hong, K. H. Chung, Ch. H. Lee, Effects of hot extrusion parameters on the tensile properties and microstructures of SiCw- 2124A1 composites, Materials Science and Engineering, 1996, A206, p. 225-232
[13] M. Shiomi, D. Takano, K. Osakada, M. Otsu, Forming of aluminium alloy at temperatures just below melting point, International Journal of Machine Tools & Manufacture, 2003, 43, p. 229-235
[14] O. Reiso, Extrusion of AlMgSi Alloys, Materials Forum, 2004, vol. 28, p. 32-46
[15] A. Korbel, W. Bochniak, Method of Plastic Forming of Materials, U.S. Patent No. 5,737,959, 1997
[16] W. Bochniak, A. Korbel, KOBO Type Forming: forging of metals under complex conditions of the process, Jurnal of Materials Processing Technology, 134, 2003, p. 120-134
[17] A. Korbel, W. Bochniak, P. Ostachowski, L. B┼éaż, Visco-Plastic Flow of Metal in Dynamic Conditions of Complex Strain SchemeMetall, Mater Trans A, vol. 42, 2011, Issue 9, p.2881-2897.
[18] A. Korbel, J. Pospiech, W. Bochniak, A. Tarasek, P. Ostachowski, J. Bonarski, New structural and mechanical features of hexagonal materials after room temperature extrusion using the KoBo metod, Int. J. Mat. Res., 102, 2011, 4.
[19] W. Bochniak, P. Ostachowski, A. Korbel, K. Pieła, Superplastic Flow of Metals Extruded by KoBo Method, Materials Science Forum, vols. 667- 669, 2011, p. 1039-1044
[20] A. Korbel, W. Bochniak, Plastic flow of aluminium extruded under complex conditions, Materials Science and Technology, vol. 16, June 2000, p. 664-669
[21] M. Shiomi, D. Takano, K. Osakada, M. Otsu, Forming of aluminium alloy at temperatures just below melting point, International Journal of Machine Tools & Manufacture, 43, 2003, 229-235
[22] W. Bochniak, K. Marszowski, A. Korbel, Theoretical and practical aspects of the production of thin-walled tubes by the KOBO method, Journal of Materials Processing Technology, 169, 2005, 44-53
[23] P. Sakaris, H. J. McQueen, Aluminum alloys: their physical and mechanical properties (ICAA3), vol. 1, 554-559, 1992, Trondheim, NTH-Sinteff
[24] R. J. Arsenault, Strength of metals and alloys, vol. 2, 31-46, 1990, London, Freund
[25] Xiaoxin Xia, P. Sakaris, H. J. McQueen, Hot deformation, dynamic recovery, and recrystallisation behavior of aluminium 6061-SiCp composite, Materials Science and Technology, vol. 10, 1994, 487