The Effect of Stirrer Depth And Electroless Coating of Hardness And Tensile Strength in Aluminium Matrix Composite AL6061-AL2O3

Sukma Andini, Eko Surojo, Teguh Triyono

Abstract

Metal Matrix Composite (MMC) are composite materials that are widely used in the industrial sector. Examples of metal matrix composites are Al6061 as matrix alloys and Al2O3 as reinforcement. In general, making Al6061-Al2O3 composites using the stir casting method. This research was conducted to determine the effect of the depth of stirring and electroless coating treatment on the hardness and tensile strength of Al6061-Al2O3 composites. The process of making composites with Al2O3 reinforcing particles with 6% weight fraction mixed with aluminium alloys and 2.5% magnesium powder as a wetting agent. Variations of this study were the depth of the stirrer and electroless coating treatment. The depths of stirring used for the experiment were 30%, 45%, and 60% of the height of the fluid. The testing phases in this study were the density and porosity test, metallographic observation, hardness test, and tensile test. The most efficient variation of the mixer depth was obtained at a mixer depth of 30% of the fluid height. The highest hardness and tensile strength test results are hardness value of 72.43 Brinell Hardness (HB) and tensile strength of 182.19 MPa with electroless coating reinforcement treatment.

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References

1 M. Dewi, A. A. Alhamidi, and M. Fitrullah, "Studi Mikrostruktur Dan Sifat Mekanik Aluminium 6061 Melalui Proses Canai Dingin Dan Aging," Jurnal Furnace, vol. 2, no. 1, pp. 1-7, 2016. (in Indonesian).

2 S. Pratapa, and D. Wardani, "Identifikasi Fasa Pada Sintesis Al2O3 Dengan Metode Logam–Terlarut Asam," Jurnal Sains Dan Seni Pomits, vol. 3, no. 2, pp. 2337-3520, 2014. (in Indonesian).

3 C. B. 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, pp. 2783-2792, 2017.

4 A. Zulfia, T. Mas’udah, and S. Lutfi, "Electroless Deposition of Metal Oxide on SiC Particles Reinforced for Producing Al–Si /SiC Metal Matrix Composites," Adv. Mater. Res., vol. 277, pp. 43-50, 2011.

5 S. Sulardjaka, M. R. Rahman, and C. Wahyudianto, "Pengaruh Waktu Dan Temperatur Sinter Terhadap Densitas Dan Porositas Komposit Aluminium Yang Diperkuat Limbah Geothermal," Rotasi, vol. 15, no. 4, pp. 28-32, 2013. (in Indonesian).

6 F. D. Mu’afax, B. Harjanto, and Suharno, Pengaruh Variasi Media Pendingin Terhadap Kekerasan Dan Struktur Mikro Hasil Remelting Al–Si Berbasis Limbah Piston Bekas Dengan Perlakuan Degassing, Surakarta: Universitas Sebelas Maret, 2013.

7 B. Bihari and A. K. Singh, "An Overview on Different Processing Parameters in Particulate Reinforced Metal Matrix Composite Fabricated by Stir Casting Process," Int. J. Eng. Res. Appl., vol. 7, no. 1, pp. 42-48, 2017.

8 Y. Samuel and A. Zulfia, Karakteristik Komposit Aluminium AC8H / SiC Dengan Proses Stir Casting, Depok: Universitas Indonesia, 2012.

9 D. R. Widodo and Rusiyanto, "Densitas Dan Kekuatan Bending Pada Material Komposit Fly Ash–Mgo," Sainteknol: Jurnal Sains dan Teknologi, vol. 8, no. 1, pp. 79-86, 2010.

10 J. Hashim, L. Looney, and M. S. J. Hashmi, "Metal Matrix Composites: Production by The Stir Casting Method," J. Mater. Process. Technol., vol. 92-93, pp. 1-7, 1999.

11 D. G. E. Perdana, K. Suarsana, and K, C. I. Putri, "Pengaruh Variasi Komposisi Komposit Matrik Aluminium Berpenguat Sicw / Al2O3 Dengan Wetting Agent Terhadap Densitas , Porositas Dan Kekerasan," Jurnal Ilmiah Teknik Desain Mekanika, vol. 7, no. 1, pp. 7-12, 2018. (in Indonesian).

12 Q. Hadi, and M. I. Dullah, Pengaruh Jenis Bentuk Pengaduk Stirring Blade Terhadap Kehomogenan Dan Sifat Mekanik Komposit Al–SiC Dengan Metode Stir Casting Tanpa Pembasahan, Palembang: Universitas Sriwijaya, 2012.

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