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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin
FX Kristianta
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Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGARUH MAGNESIUM TERHADAP KEKERASAN DAN KETAHANAN AUS KOMPOSIT ALUMINIUM 6061/nano-Al2O3 DENGAN METODE STIR CASTING Rochmad Eko Prasetyaning Utomo; Salahuddin Yunus; FX Kristianta
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Aluminum composite 6061/nano-Al2O3 is a material that utilizes aluminum 6061 as a matrix. Aluminum 6061 is aluminum alloys with magnesium. The mechanical properties of aluminum 6061 are lower than the steel. To increase the mechanical properties of aluminum 6061, nano-Al2O3 particle is added as reinforce. Problems encountered in the manufacture of these composites are the bond between the matrix and the reinforcement. Aluminum 6061 and nano-Al2O3 cannot form a bond each other so it is necessary to add a wetting agent to improve bonding between aluminum 6061 and nano-Al2O3. Wetting agent used in this study is magnesium with purity levels reached 99%. The magnesium is added by 1%, 3% and 5%. Stir casting process is used in this study in order to mix aluminum, alumina and magnesium evenly. Then hardness test and wear test are performed to determine the mechanical properties of the composite 6061/nano-Al2O3. The results show that the hardness is increased about 44 HRB with adding magnesium of 5%. The wearing resistance is also increased which is marked by the lower rate of the wear until reached 2.86 x 10-3 mm3/m. Keywords: Komposit Al 6061/nano-Al2O3, Magnesium, Stir Casting, nano- Al2O3, Al 6061
Pengaruh Penambahan Kawat Baja 0,67%C Terhadap Karakterisasi Komposit Al-2Mg/Kawat Baja 0,67%c Dama Krisna Bachtiar; Intan Hardiatama; FX Kristianta; Imam Sholahudin; M Dimyati Nashrullah
STATOR: Jurnal Ilmiah Teknik Mesin Vol 5 No 1 (2022): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Dalam rangka menghadapi perkembangan pasar industri material, setiap perusahaan perlu meningkatkan kualitas produknya. Salah satu material yang sedang dikembangkan adalah material komposit. Komposit merupakan bahan yang terbuat dari dua unsur, diantaranya adalah matrik dan penguat. Kawat baja kali ini digunakan sebagai bahan penguat dalam pembuatan komposit aluminium karena mempunyai kekuatan tarik, kelelahan, dan torsi yang sangat baik. Pada penelitian ini, komposit Al-2Mg/Kawat Baja 0,67%C diproses menggunakan metode stir casting untuk mengetahui pengaruh variasi penambahan kawat baja 0,67%C dengan diameter 0,4 mm sebanyak 1, 2, 3 batang terhadap karakterisasi komposit Al-2Mg/Kawat Baja 0,67%C. Pengujian yang dilakukan meliputi pengujian densitas-porositas. Persentase porositas tertinggi dicapai pada variasi penambahan 3 batang kawat dengan nilai 2,72%.
Co-Authors Dama Krisna Bachtiar Imam Sholahudin Intan Hardiatama M Dimyati Nashrullah Rochmad Eko Prasetyaning Utomo Salahuddin Yunus