Effect of Aluminum Nitride Addition on Dry Wear Properties of Al-11%Si Alloy Prepared by Stir Casting Process

Abstract:

Dry wear properties of aluminum nitride (AlN) reinforced aluminum-11% silicon alloy (Al-11%Si) was studied using a pin-on-disc configuration wear tester. Different weight percentages of AlN (0 – 10 wt.%) powder were added to the Al-Si alloy, melt and stir cast via bottom pour technique to form composites of Al-Si alloy/AlN. The dry sliding wear test were performed at a room temperature (27°C), under 25N and 70N load with fixed velocity of 1ms-1 and sliding distance between 1 to 5 km. The addition of 10 wt% of AlN improved wear resistance of Al-Si alloy by 72% and 130% indicated by volume loss for 25N and 70N load respectively. Mixed-wear mechanism of delamination, adhesion and abrasion was observed for the composite when applied loads were 25N and 70N while delaminating mechanism was dominance for Al-Si matrix alloy. Both Al-Si alloy with and without AlN reinforced found with FE element from counter-face disk that shows material transfer was significant.

• Periodical: Advanced Materials Research (Volumes 264-265)
• Pages: 614-619
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.264-265.614
• Online since: June 2011
• Authors: Mahamad Noor Wahab, Mariyam Jameelah Ghazali, Abdul Razak Daud
• Keywords: AlN Particle, Al-Si Alloy, Wear

References

[1] M. Rittner: Metal matrix composites in 21st. century: markets and opportunities (Norwalk, C.T.: BCC, Inc. 2000).

[2] S.A. Charles, V.P.: Indian J. Eng. Mater. Sci., (2003) p.10.

[3] S.M. Suresh, A. Needleman: Fundamental of metal matrix composites (Heinemann Publication, Butterworth 1993).

[4] L.M. Sheppard: American Ceramic Society Bulletin Vol. 69 (1990) p.108.

[5] C. Troadec, P. Goeuriot, P. Verdieq, Y. Laurent, J. Vincens, G. Boiteir, J.L. Chermant, B.L. Mordike: Journal of the European Ceramic Society Vol. 17 (1997) p.1867.

DOI: 10.1016/s0955-2219(97)00068-x

[6] Q. Zhang: Materials Letters Vol. 57 (2003) p.1453.

[7] J. Hashim, L. Looney, and M.S.J. Hashmi: Journal of Materials Processing Technology Vol. 92-93 (1999) p.1.

[8] A. El-Azim, A.N.: Materials Letters Vol. 56(6) (2002) p.963.

[9] M. Kök: Composites Part A: Applied Science and Manufacturing Vol. 37(7) (2006) p.457.

[10] K.R. Suresh: Wear Vol. 255 (2003) p.638.

[11] T. Savaskan, A.P. Hekimogu, G. Purcek: Tribology International Vol. 37 (2000) pp.2833-2847.

[12] J.A. Zhang, A.T.: Mater. Sci Eng. A Vol. 161 (1993) p.273.