Optimization of Aluminium Casting with Alumina Reinforcement via Stir Casting: Impact on Physical and Mechanical Properties

Abstract:

Aluminum casting using the stir casting method is a common practice in the industrial sector. This study aims to optimize the effect of stirring speed on the physical and mechanical properties of aluminum casting reinforced with alumina powder (Al2O3). The material used in this study is derived from discarded vehicle rim waste. The stir casting method was performed at varying speeds of 500, 600, and 700 rpm, with a mold temperature of 250°C and a pouring temperature of 700°C. Physical testing to examine the microstructure was conducted using optical metallography, hardness testing was performed using the Rockwell hardness scale B, and tensile strength was measured using a Universal Testing Machine. The microstructure observations showed that a stirring speed of 500 rpm yielded the best results, with minimal porosity. The highest hardness value recorded was 65 HRB at 500 rpm, consistent with the microstructure observations. The highest tensile strength was also recorded at 500 rpm, reaching 262 MPa.

• Periodical: Materials Science Forum (Volume 1138)
• Pages: 21-28
• DOI: https://doi.org/10.4028/p-ICe3dK
• Online since: December 2024
• Authors: Sri Mulyo Bondan Respati, Nur Kholis*, Helmy Purwanto, Prasetyo Wibowo
• Keywords: Alumina Reinforcement, Aluminum Casting, Stir Casting

References

[1] A. Hobi, T. Abdulameer, and N. Sattar, "Effect of Alumina Reinforcement on Some Mechanical Properties of Aluminium Matrix Composites Produced by Stir Casting Process," Int. J. Eng. Technol., vol. 9, no. 10, p.1271–1280, 2018.

[2] Y. Hendronursito, T. O. Rajagukguk, A. Anshori, and A. Yunanto, "Optimization of Stir Casting of Aluminium Matrix Composites (AMCs) with Filler of Recycled Glass Powder (RGP) for The Mechanical Properties," J. Mech. Eng. Sci. Technol., vol. 4, no. 2, p.101–114, 2020.

DOI: 10.17977/um016v4i22020p101

[3] A. D. Anggono, N. Kholis, and Ngafwan, "Structure and Mechanical Properties of Double Side Friction Stir Welded Aluminium AA6061 with the Addition of Cu Powder," Mater. Sci. Forum, vol. 1051 MSF, p.111–118, 2022.

DOI: 10.4028/www.scientific.net/MSF.1051.111

[4] N. Kholis, H. Purwanto, Darmanto, and M. F. Fadhlillah, Microstructure and Mechanical Properties of Friction Stir Welding Aluminium AA1100 with the Parameter of the Tool Pin Profile, vol. 2022. Atlantis Press International BV, 2023.

DOI: 10.2991/978-94-6463-284-2_56

[5] V. Bharath, M. Nagaral, V. Auradi, and S. A. Kori, "Preparation of 6061Al-Al 2 O 3 MMC's by Stir Casting and Evaluation of Mechanical and Wear Properties," Procedia Mater. Sci., vol. 6, no. Icmpc, p.1658–1667, 2014.

DOI: 10.1016/j.mspro.2014.07.151

[6] N. Parvin and M. Rahimian, "The characteristics of alumina particle reinforced pure Al matrix composite," Acta Phys. Pol. A, vol. 121, no. 1, p.108–110, 2012, doi: 10.12693/APhysPolA. 121.108.

DOI: 10.12693/aphyspola.121.108

[7] R. Abdulajees, S. M. Sivagami, and R. T. Vijay, "Characterization of aluminium metal matrix composites fab ricated by stir casting," Int. Res. J. Eng. Technol, vol. 7, no. 9, p.2598–2602, 2020.

[8] J. Kumar et al., "Optimizations of reinforcing particulates and processing parameters for stir casting of aluminium metal matrix composites for sustainable properties," Mater. Today Proc., vol. 68, p.1172–1179, 2022.

DOI: 10.1016/j.matpr.2022.10.109

[9] E. Arumugam and S. Solaiachari, "Experimental analysis and machining characterization of aluminium 356 matrix composites reinforced with fly ash and alumina oxide Al2O3," Mater. Today Proc., no. xxxx, 2023.

DOI: 10.1016/j.matpr.2023.09.214

[10] A. S. Lubis et al., "Rancang Bangun Alat Stir Casting Menggunakan Metode Pahl and Beitz Untuk Proses Pembuatan Komposit Matriks Aluminium," J. Tek. Mesin Undip, vol. 2, no. 3, p.190–194, 2014.

[11] K. Sekar, K. Allesu, and M. a Joseph, "Design of a stir casting machine," Am. Int. J. Res. Sci. Technol. Eng. Math., vol. 13, no. 214, p.56–62, 2013.

[12] A. Gupta, "Design and Fabrication of Stir Casting Machine," no. November, 2017.

[13] S. P. Pintubatu, S. Sutjipto, and K. Kunci, "Perancangan Alat Stir Casting untuk Proses Pembuatan Komposit Matriks Aluminium dengan Saluran Penuangan," p.26–27, 2020.

[14] N. Kholis, H. Purwanto, G. P. Annanto, and M. A. E. Jatmiko, "The Effect of Tool Rotation on Structure and Mechanical Properties in Friction Stir Welding Of Aluminium AA5052," J. Mod. Mech. Eng. Technol., vol. 9, p.83–89, 2022.

DOI: 10.31875/2409-9848.2022.09.10

[15] ASTM standard 407-07, "ASTM 407-07, Standard Practice for Microetching Metals and Alloys, ASTM International, West Conshohocken, PA, 2007," p.1–21, 2005.

[16] ASTM E8, "ASTM E8/E8M standard test methods for tension testing of metallic materials 1," Annu. B. ASTM Stand. 4, no. C, p.1–27, 2010.

DOI: 10.1520/jte20190549

[17] M. H. Jokhio, "Manufacturing of aluminium composite material using stir casting prosess," Mehran Univ. Res. J. Eng. dan Technol., vol. 30, no. 1, 2011.

[18] B. C. Kandpal, J. Kumar, and H. Singh, "Fabrication and characterisation of Al2O3/aluminium alloy 6061 composites fabricated by Stir casting," Mater. Today Proc., vol. 4, no. 2, p.2783–2792, 2017.

DOI: 10.1016/j.matpr.2017.02.157

[19] L. Suvarna Raju and A. Kumar, "Influence of Al2O3 particles on the microstructure and mechanical properties of copper surface composites fabricated by friction stir processing," Def. Technol., vol. 10, no. 4, p.375–383, 2014.

DOI: 10.1016/j.dt.2014.09.001

[20] S. N. Aqida, M. . Ghazali, J. Hashim, and Junrla Mekanikal, "The effects of stirring speed and reinforcement particles on porosity formation in cast MMC," Mekanikal, vol. 16, no. 2, p.22–30, 2003, [Online]. Available: http://eprints.utm.my/id/eprint/8280