A NEW APPROACH TO THE PRODUCTION OF LAMINATED COMPOSITES CONSISTING OF AL2O3 REINFORCED AND UNREINFORCED 7039 AL ALLOY SHEETS

Year 2016, Volume: 2 Issue: 1, 1 - 10, 29.06.2016

Uğur Avcı

https://doi.org/10.23884/mejs/2016.2.1.01

Cited By: 1

Abstract

In this study, Al2O3 particles with an average size of 6 μm were reinforced with 15% by weight of 7039 Al alloy matrix by Vortex method and metal matrix composite sheet was obtained. Reinforced 7039 Al alloy and unreinforced 7039 Al alloy sheet were placed in specially prepared mold after surface cleaning. The metal matrix composites placed in the furnace together with the mold were kept in the oven at 630 °C for 30 minutes until approximately 30% liquid, 70% solid consistency. Immediately after applying pressure of approximately 7 MPa to the semi-solid composite material in the mold removed from the furnace, the mold was placed in the annealing furnace in the same manner and left at approximately 600 ° C for approximately 4 hours. The new layered composite material formed by the joining of the plates cooled in the kiln mold to 500 oC temperature was removed from the mold and cooled in water. The microstructure and mechanical properties of the composite material were determined by optical microscope, micro hardness and tensile tests.

Key words: 7039 Al alloy

Keywords

7039 Al alloy, Vortex process, MMC, Layer Composite

References

• [1] Koizumi, M. (1997). FGM activities in Japan. Composites, B 28, 1-4.
• [2] Wang, S.S. (1983). Fracture mechanics for delamination problems in composite materials. J. Compos. Mater. 17 (3), 210-223.
• [3] Niino, M., Hirai, T.,& R. Watanable. (1987). The functionally gradient materials. J.Jpn.Soc. Compos. Mater. 13, 257-264.
• [4] Shanmugavel P., Bhaskar, G.B., Chandrasekaran, M., Mani, P.S., & S.P. Srinivasan. (2012). An overview of fracture analysis in functionally graded materials, Eur.J.Sci. Res. 68 (3), 412-439.
• [5] Jha, D.K., Kant, T., & Singh, R.K. (2013). Critical review of recent research on functionally graded plates, Compos. Struct. 96, 833-849.
• [6] North, B. (1987). Int. J. High Tech. Ceramics, 3, 113–127.
• [7] Adams, J. H., Anschuetz, B., & Whitfield, G. (1991). Ceramic Cutting Tools. In Engineered Materials Handbook, Vol. 4, Ceramics and Glasses, ASM International, Metals Park, OH, p. 966.
• [8] Montgomery, J.S., & Chin, E.S. (2004). The AMPTİAC Quarterly,8 (4), 16.
• [9] Perez-Bergquist, Sara J., Gray III, G.T. (Rusty)., Cerreta, Ellen K., Trujillo, Carl P., & Perez-Bergquist, Alex. (2011). The dynamic and quasi-static mechanical response of three aluminum armor alloys: 5059, 5083 and 7039. Materials Science and Engineering. A 528, 8733-8741.
• [10] Trotten, G.E., & MacKenzie, D.S. (2003). Al-Zn-Mg alloys, in: Handbook of Aluminum, Marcel DekkerInc., NY, 185-194.
• [11] Abdizadeh, H., Baharvandi, H.R., & Shirvani Moghaddam, K. (2008). Effect of B 4 C, TiB 2 and ZrSiO 4 ceramic particles on mechanical properties of aluminium matrix composites: Experimental investigation and predictive modelling. Mater. Sci. Eng. A 498, 53-58.
• [12] Onat, A., Akbulut, H., & Yılmaz, F. (2007). Journal of Alloys and Compound. 436 375-382.
• [13] Chen, R., & Zhang, G. (1993). Casting defects and properties of cast A356 aluminium alloy reinforced with SiC particles. Composites Science and Technology. Vol. 47, pp. 51-56.
• [14] Bolourı, A., Shahmırı, M., & Cheshmeh, E. N. H. (2010). Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy. Trans. Nonferrous Met. Soc. China 20, 1663−1671.