TY - JOUR AU - ., Sukanto AU - Soenoko, Rudy AU - Suprapto, Wahyono AU - Irawan, Yudy Surya PY - 2020/09/30 Y2 - 2024/03/29 TI - Characterization of aluminium matrix composite of Al-ZnSiFeCuMg alloy reinforced with silica sand tailings particles JF - Journal of Mechanical Engineering and Sciences JA - J. Mech. Eng. Sci. VL - 14 IS - 3 SE - Article DO - 10.15282/jmes.14.3.2020.11.0556 UR - https://journal.ump.edu.my/jmes/article/view/2867 SP - 7094 - 7108 AB - <p>Due to the increased demand for aluminium and the prohibitive cost of producing primary aluminium, the process of making AMCs using recycled aluminium alloy as a matrix and silica sand tailing without leaching as a filler is essential to be developed. For more cost-effective, the purpose of this study is to make particulate aluminium composite matrix AMCs with a matrix of recycled aluminium and reinforced with silica sand tailing without leaching. This research involves the effect of differences in grain size and filler weight percentage on matrix Al-ZnSiFeCuMg recycled aluminium alloy powder. This study used powder metallurgy technology as well as two-way hot-compaction (300°C) and applied a sintering temperature of 550°C. Density, hardness, and wear testing, as well as microstructure analysis, were conducted to determine the characteristics of the resulting AMCs. An increase in hardness of 67% was achieved by the AMCs-164 <em>µ</em>m-20%SiO<sub>2</sub> specimen, which used a filler grain size of 164 <em>µ</em>m wt.20%. Meanwhile, AMCs-31 <em>µ</em>m-20%SiO<sub>2</sub>, which used a filler grain size of 31 <em>µ</em>m, only increased by 63%. The wear test result also showed a lower wear rate achieved by the AMCs-164 <em>µ</em>m-20%SiO<sub>2</sub> specimen. The results analyses using SEM-EDS instruments showed higher agglomeration and porosity in specimens using a filler grain size of 31 <em>µ</em>m, while AMCs using a filler grain size of 164 <em>µ</em>m showed an even spread of filler powder. Therefore, AMCs that used 164 <em>µ</em>m powder-sized fillers have a stronger bond between the filler and the matrix and produce AMCs that are harder than AMCs that use 31 <em>µ</em>m fillers.</p> ER -