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Dhany Sahdeini Hari Dhany - One of the best experts on this subject based on the ideXlab platform.
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PENGARUH PENAMBAHAN UNSUR Magnesium (Mg) TERHADAP SIFAT MEKANIS PADA PENGECORAN ALUMINIUM A1100 APLIKASI HANDLE REM SEPEDA MOTOR
2020Co-Authors: Dhany Sahdeini Hari DhanyAbstract:Dhany Sahdeini Hari, 2020. “Pengaruh penambahan unsur Magnesium (Mg) terhadap sifat mekanis pada pengecoran aluminium A1100 aplikasi handle rem sepeda motor”. Teknik Mesin Fakultas Teknik, Universitas Pancasakti Tegal. Tujuan dari penelitian ini adalah untuk mengetahui kekuatan sifat mekanik pada pengecoran aluminium A1100 dipadukan dengan Magnesium (Mg) terhadap kekuatan impak, kekuatan lengkung (bending), dan nilai kekerasan. Metode penelitian yang digunakan dalam penelitian ini adalah metode eksperimen pengecoran plat aluminium (1100) yang dipadukan dengan Magnesium ingot menggunakan proses pengecoran Stir casting dengan kecepatan putar 280 rpm selama 5 menit, temperatur peleburan 720 0C, temperatur penuangan 700 0C, dan cetakan yang dipakai menggunakan cetakan pasir kering (Sand casting). Kemudian dilakukan pengujian impact charpy, kuat lengkung (bending), dan kekerasan brinell menggunakan standar JIS. Hasil uji impact paduan Magnesium (2%, 6%, dan 8%) masing-masing prosentase penambahan Mg meningkatkan kuat impak, dimana pada paduan Magnesium 6% memiliki kuat impak tertinggi yaitu 0,115 J/mm2, dan pada raw material A1100 memiliki kuat impak 0,062 J/mm2. Sedangkan hasil uji bending raw material A1100 memiliki kuat lengkung tertinggi yaitu 206,35 N/mm2, pada paduan Magnesium 2% yaitu 127,52 N/mm2, paduan Magnesium 6% yaitu 108,17 N/mm2, dan paduan Magnesium (8%) 116,25 N/mm2. Sedangkan hasil uji kekerasan paduan Magnesium (2%, 6%, dan 8%) masing-masing prosentase penambahan Mg meningkatkan nilai kekerasan, dimana pada paduan Magnesium 8% memiliki nilai kekerasan tertinggi yaitu 143,14 HB, dan pada raw material handle rem memiliki nilai kekerasan 95,93 HB. Kata kunci : Aluminium 1100, Magnesium, Handle rem, Stir casting, Sand casting, uji impact charpy, uji kuat lengkung (bending), dan uji kekerasan brinell
F Yang - One of the best experts on this subject based on the ideXlab platform.
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corrosion behaviors of Mg and its alloys with different al contents in a modified simulated body fluid
Journal of Alloys and Compounds, 2009Co-Authors: Zhaohui Wen, Changsong Dai, F YangAbstract:Abstract The corrosion behaviors of pure Magnesium (Mg) and three Mg alloys with different Al contents were investigated in a modified simulated body fluid (m-SBF) through immersion tests, Tafel experiments, and electrochemical impedance spectroscopic (EIS) experiments. The immersion results show that the corrosion rates (CRs) of the four samples were in an order of AZ91D
Dhany Sahdeini Hari, Dhany Sahdeini - One of the best experts on this subject based on the ideXlab platform.
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PENGARUH PENAMBAHAN UNSUR Magnesium (Mg) TERHADAP SIFAT MEKANIS PADA PENGECORAN ALUMINIUM A1100 APLIKASI HANDLE REM SEPEDA MOTOR
2020Co-Authors: Dhany Sahdeini Hari, Dhany SahdeiniAbstract:Dhany Sahdeini Hari, 2020. “Effect of addition of Magnesium (Mg) to mechanical properties of A1110 aluminum casting in motorcycle brake handle applications”. Mechanical Engineering Faculty of Engineering, Pancasakti University Tegal. The purpose of this study was to determine the strength of mechanical properties in aluminum casting 1100 combined with Magnesium (Mg) on impact strength, bending strength, and hardness value. The research method used in this study is the experimental in this of aluminum plate casting (1100) combined with Magnesium ingot using stir casting process with a rotating speed of 280rpm for 5 minutes, melting temperature of 720 0C, pouring temperature of 700 0C, and mold used using sand molds Sand casting is then tested for bending strength, charpy impact, and brinell hardness using the JIS standar. Results of impact test alloy Magnesium (2% , 6%, and 8%) respectively the presentage of Mg increases the impact strength, wherein the 6% Magnesium alloy has the highest impact strength that is 0,115 J/mm2, and in the raw material A1100 has the impact stength of 0,062 J/mm2. While the bending test results of the raw material A1100 has the highest flexural stregth of 206,35 N/mm2, Magnesium alloy (2%) is 127,52 N/mm2, Magnesium alloy (6%) is 108,17 N/mm2, and Magnesium alloy (8%) 116,25 N/mm2. While results of hardness test alloy Magnesium (2%, 6%, and 8%) respectively the presentage of Mg increases the hardness value, whereas in Magnesium alloy 8% has the highest hardness value of 143,43 HB, and in the raw material brake handle has a hardness value of 95,93 HB. Keywords: Aluminium 1100, Magnesium, Brake handle, Stir casting, Sand casting, Charpy test, Bending stengt test, and Hardness test
Romandhani, Aditya Brori - One of the best experts on this subject based on the ideXlab platform.
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Pengaruh Variasi Kandungan Magnesium (Mg) dalam Proses Pembuatan Besi Cor Nodular terhadap Ketahanan Aus
2019Co-Authors: Romandhani, Aditya BroriAbstract:Nodular cast iron is one type of cast iron whose graphite is round. Magnesium (Mg) is the material most often used by the casting industry as a graphite forming material because it is more profitable than other materials. This study aims to determine the effect of Magnesium (Mg) content to microstructure and wear resistance of nodular cast iron. The study was used FCD as the starting material which was then smelted in the induction furnace. The process of forming round graphite cast iron is carried out by using an open ladel system, variations in the addition of FeSiMg by 50 grams, 100 grams, 150 grams, and 200 grams was placed under 15 kg capacity ladel just before the molten iron is poured into the ladel. The results showed that the increasing percentage of Magnesium (Mg) in nodular cast iron produced the graphite granules which tended to be more rounded with uniform graphite grain size and tended to shrink, in addition there was an increase in pearlite area and reduced ferrite area. while based on wear testing with the ogoshi method the highest wear value 1,318 × 10-5 mm3/kg.m occurred in specimen 1 raw material FCD and the lowest wear value was 8.837 × 10-6 mm3/kg.m occurred in specimen 5
Setyawan, Ardiyan Aji - One of the best experts on this subject based on the ideXlab platform.
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Pengaruh Variasi Kandungan Magnesium (Mg) dalam Proses Pembuatan Besi Cor Nodular terhadap Kekerasan
2019Co-Authors: Setyawan, Ardiyan AjiAbstract:Nodular cast iron is a gray cast iron with the process of adding Magnesium alloy (Mg) or cerium (Ce) so that it transforms the shape of the graphite flakes into rounded (nodules).The purpose of this study is to determine the influence of Magnesium content on microstructure and hardness of nodular cast iron. The research was conducted using the material of nodular cast iron which is melted in the induction furnace, this study uses the main ingredient FCD as the starting ingredient.The process of forming a spherical graphite cast iron is carried out by using the open Ladel system, the addition of FeSiMg weighing 50 grams, 100 grams, 150 grams, and 200 grams are placed on the base of Ladel with a capacity of 15 kg shortly before the liquid iron were poured into the Ladel Pouring.The results showed that increasing elements of Magnesium (Mg) will result graphite granules were tended to be smaller and increased perlit areas. The smallest hardness value 210,59 BHN occurs in specimens 1 Raw material FCD with Magnesium composition 0,0296% Mg and the largest hardness value of 296,64 BHN occurs in specimen 5 with Magnesium composition of 0,0351% Mg
