International Journal of Advanced Culture Technology

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Mechanical and Electrical Properties of Aluminium Alloy by Cryorolling Process

  • Wangkasem, P. (Faculty of Engineer Siam University) ;
  • Rojananan, S. (School of Energy Environment and MaterialKing Mongkut's University of Technology Thonburi)
  • Received : 2015.03.05
  • Accepted : 2015.05.06
  • Published : 2015.06.30
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Abstract

The mechanical and electrical properties of aluminium alloy 6061 are reported in this present work. Aluminium alloys were homogenized at $550^{\circ}C$, for 5 hours and cooled in the furnace. The different thickness reductions of 60-90% on homogenized aluminium alloy plates were achieved by cryo-rolling. Later, the as rolled samples were aged by solution treatment at the temperatures of $520^{\circ}C$ for 1 hour, water quenched; subsequently aged at $160^{\circ}C$ for 8-24 hours and partial aged (not solution treatment) at $160^{\circ}C$ for 8- 24 hours. Mechanical and electrical properties of samples were investigated. The experimental result showed that the microhardness of cryo-rolled samples were increase with increasing the percentage of the thickness reduction. Moreover, the microhardness of cryo-rolled, aged by solution treatment samples were higher than those of the cryo-rolled and cryo-rolled, partial aged samples. The cryo-rolled alloys subjected to full aged at $160^{\circ}C$ for 24 hours exhibited the hardness of 125 HV and electrical conductivity values was 45.76 %IACS and the cryo-rolled alloys subjected to partial aged at $160^{\circ}C$ for 20 hours exhibited the hardness of 67 HV and electrical conductivity values was 49.67 %IACS.

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References

  1. Polmear, I.J., Light Alloys, 2nd Edition, Chapman and Hall, Inc., pp. 92-95, 1989, New York.
  2. Kaufman, J.G., Aluminum Alloys and Tempers, Material Park, Inc., pp. 97-101, 2000, USA.
  3. Panigrahi, S.K., Jayaganthan, R., "A study on the mechanical properties of cryorolled Al-Mg-Si alloy," Materials Science and Engineering A, Vol. 480, pp. 299-305, 2008. https://doi.org/10.1016/j.msea.2007.07.024
  4. Dutkiewicz, J., Litynska, L., "The effect of plastic deformation on structure and properties of chosen 6000 series aluminium alloys," Materials Science and Engineering, Vol. A324, pp. 239-243, 2002.
  5. Azushima, A., Kopp, R., Korhonen, A., Yang, D.Y., Micari, F., Lahoti, G.D., Groche, P., Yanagimoto, J., Tsuji, N., Rosochowski, A., and Yanagida, A., "Severe plastic deformation (SPD) processes for metals, Manufacturing Technology," Vol. 57, pp. 716-735, 2008.
  6. Saravanan, M., Pillai R.M., Pai B.C., Brahmakumar, M. and Ravi K.R., "Equal Channel Angular Pressing of pure aluminium - analysis", Indian Academy of Sciences, Vol. 29, No.7, pp. 679-684, 2006.
  7. Murayama, M., Horita, Z. and Hono, K., "MicrostructureI of two-phase Al-1.7 at% Cu alloy deformed by Equal-Channel Angular Pressing," Acta materialia, Vol. 49, pp. 21-29, 2001. https://doi.org/10.1016/S1359-6454(00)00308-6
  8. Lee, Y.B., Shin, D. H., K. Park, and Num, W. J., "Effect of annealing temperature on microstructure and mechanical properties of a 5083 Al alloy deformed clyogenic temperature," Scipta Materialia, Vol. 51, pp. 355-359, 2004. https://doi.org/10.1016/j.scriptamat.2004.02.037
  9. Panigrahi, S.K., Jayaganthan, R., "Development of ultrafine grained Al-Mg-Si alloy with enhanced strength and ductility", Journal of Alloys and Compounds, Vol. 470, pp. 285-288, 2009. https://doi.org/10.1016/j.jallcom.2008.02.028
  10. Lapovok, R., Timokhina, I., McKenzie, P.W.J. and O'Donnell R., "Processing and properties of ultrafine-grain aluminium alloy 6111 sheet," Journal of materials processing technology, Vol. 408, pp. 265-277, 2007.
  11. Zheng, L.J., Chen, C.Q., Zhou, T.T., Liu, P.Y and Zeng, M.G., "Structure and properties of ultrafine-grained Al-Zn-Mg-Cu and Al-Cu-Mg-Mn alloys fabricated by ECA pressing combined with thermal treatment," Materials Characterization, Vol. 49, pp. 455-461, 2003.
  12. Smith, W.F., Structure and Properties of Engineering Alloys, McGraw-Hill, Inc., pp. 162-201, 1981, USA.
  13. Totten, G.E., Xie, L. and Funatami, K., Handbook of Mechanical Alloy Design, Marcel Dekker, Inc., pp. 459-466, 2004, USA.
  14. Callister, W.D., Fundamentals of Materials Science and Engineering, 2nd Edition, John Wiley & Sons, Inc., pp. 236-263, 455-460, 2005, USA.
  15. Wangkasem, P and Rojananan, S., "Mechanical Properties of Aluminium Alloys by Cold rolling and Cryo-rolling," Industrial Engineering Network Conference 2009, pp. 841-846, 2009.