Mechanical Properties of Nano SiC-Reinforced Aluminum A356 Fabricated by Stir Casting Method

Abstract:

Nano SiC-reinforced aluminumA356 (A356/SiC) has been successfully fabricated using stir casting method. The specimen was fabricated by adding various Nano SiC concentrations, i.e. 0, 0.10, 0.15, 0.20, 0.25, and 0.30 wt.%, at fix 1 wt.% magnesium into aluminum A356 melt. After stirring at certain time, the mixture was poured into the mold that has been preheated at 350oC for 5 minutes. The mechanical properties were characterized using tensile, hardness, and wear testing, where as the microstructural observation was performed using an optical microscope. The results show that the mechanical properties were optimum at 0.25 wt.% Nano SiC with a strength of 175.57 MPa (21.87%), toughness of 0.0287 Joules/mm3(14.8%), hardness of 56.54 HBN (50%), and wear resistance of 1.75 x 10-5 mm3/mm (21.13%). These results indicate that the fabrication approach was successful in producing cast MMCs samples and the use of Nano SiC and Magnesium as a wetting agent with continuous stirring were found to promote the wettability of SiC and A356 matrix alloy and thus result in reasonable mechanical properties of the composite.

• Periodical: Materials Science Forum (Volume 929)
• Pages: 86-92
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.929.86
• Online since: August 2018
• Authors: Donanta Dhaneswara*, Luthfi Noviardi Andani, Nofrijon Sofyan, Anne Zulfia
• Keywords: Aluminum A356, Metal Matrix Composite, Nano SiC, Reinforce, Stir Casting

References

[1] H. Abderrazak and E. S. B. H. Hmida, Silicon Carbide: Synthesis and Properties,, in Properties and Application of Silicon Carbide, Rijeka, InTech Europe, 2011, pp.361-390.

DOI: 10.5772/15736

[2] A. Mazahery and M. O. Shabani, Characterization of Cast A356 Alloy Reinforced with Nano SiC Composites,, Transactions of Nonferrous Metals Society of China, vol. 22, no. 2, pp.275-280, (2012).

DOI: 10.1016/s1003-6326(11)61171-0

[3] S. P. Dwivedi, S. Sharma and R. K. Mishra, Microstructure and Mechanical Properties of A356/SiC Composites Fabricated by Electromagnetic Stir Casting,, Procedia Material Science, vol. 6, no. 1, pp.1524-1532, (2014).

DOI: 10.1016/j.mspro.2014.07.133

[4] A. Mazahery, H. Abdizadeh and H. Baharvandi, Development of High-Performance A356/nano-Al2O3 Composites,, Materials Science and Engineering: A, vol. 518, no. 1-2, pp.61-64, (2009).

DOI: 10.1016/j.msea.2009.04.014

[5] A. Schultz, J. Ferguson and P. Rohatgi, Microstructure and Hardness of Al2O3 Nanoparticle Reinforced Al-Mg Composites Fabricated by Reactive Wetting and Stir Mixing,, Materials Science and Engineering: A, vol. 530, pp.87-97, (2011).

DOI: 10.1016/j.msea.2011.09.042

[6] D. Hamedan and M. Shahmiri, Production of A356-1 wt% SiC Nanocomposite by The Modified Stir Casting Method,, Materials Science and Engineering:A, vol. 556, pp.921-926, (2012).

DOI: 10.1016/j.msea.2012.07.093

[7] McLeod and M. Gabryel, Kinetics of the Growth of Spinel, MgAl2O4, on Alumina Particulate in Aluminum Alloys Containing Magnesium.,, Metallurgical Transactions A, vol. 23, no. 4, pp.1279-1283, (1992).

DOI: 10.1007/bf02665059

[8] Sangghaleh and M. Halali, of magnesium addition on the wetting of alumina by aluminium,,, Applied Surface Science, vol. 255, no. 19, pp.8202-8206, (2009).

DOI: 10.1016/j.apsusc.2009.05.044

[9] R. Lumley, T. Sercombe and M. Schaffer, Surface oxide and the role of magnesium during the sintering of aluminium,, Metallurgical and Materials Transactions A, vol. 30, no. 2, pp.457-463, (1999).

DOI: 10.1007/s11661-999-0335-y

[10] A. Zulfia, T. Zhakiah, D. Dhaneswara and Sutopo, Characteristics of Al-Mg-Si Reinforced SiC Composites Produced by Stir Casting Route,, IOP Conference Series: Materials Science and Engineering, vol. 202, (2017).

DOI: 10.1088/1757-899x/202/1/012089

[11] L.-J. Zhang, F. Qiu, J.-G. Wang and Q.-C. Jiang, High Strength and Good Ductility at Elevated Temperature of Nano-SiCp/Al2014 Composites Fabricated by Semi-Solid Stir Casting Combined with Hot Extrusion,, Materials Science and Engineering; A, vol. 626, pp.338-341, (2015).

DOI: 10.1016/j.msea.2014.12.089

[12] R. Rana, R. Purohit, V. Soni and S. Das, Characterization of Mechanical Properties and Microstructure of Aluminum Alloy-SiC Composites,, Materialstoday: Proceedings, vol. 2, no. 4-5, pp.1149-1156, (2015).

DOI: 10.1016/j.matpr.2015.07.026

[13] R. Rana, R. Purohit, V. Soni and S. Das, Development and Wear Analysis of Al-Nano SiC Composite,, Materialstoday: Proceedings, vol. 2, no. 4-5, pp.3586-3592, (2015).

DOI: 10.1016/j.matpr.2015.07.100

[14] Hadleigh Castings Aluminium Technology, Aluminium Casting Alloy (7Si-0.3Mg): A356.0.,, Hadleigh Castings Aluminium Technology, Hadleigh, (2012).

[15] T. Ishikawa and T. -W. Chou, Stiffness and Strength Properties of Woven Fabric Composites,, Journal of Material Science, vol. 17, no. 11, pp.3211-3220, (1982).

DOI: 10.1007/bf01203485

[16] L.-X. Shi, P. Shen and Z. Q.-C. Jiang, Wetting and Evaporation Behaviors of Molten Mg on Partially Oxidized SiC Substrate,, Materials Chemistry and Physics, vol. 130, no. 3, pp.1125-1133, (2011).

DOI: 10.1016/j.matchemphys.2011.08.051