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Ari, M.

Universitas Nahdlatul Ulama Sidoarjo

Author-ID : 836789

Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering

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ANALISIS SIFAT MEKANIK KOMPOSIT Al 2075 REINFORCEMENT DENGAN ELECTROLESS ABU DASAR BATUBARA Setiawan, Adhi; Nilasari, Arita Rochma; Ari, M.
Journal of Research and Technology Vol 2, No 2 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Aluminium composite 2075 manufacturing required a strenghthener such as bottom ash which has been through the electroless plating process that serves coating the bottom ash and sticks to aluminium casting process. The oxidation of 100oC produce 0,0126 µm Mg thickness oxidation, 200oC produce 0,0146 µm Mg thickness oxidation, and 300oC produces 0,0506 µm Mg thickness oxidation. Mechanical properties were tested by using worn-out test and hardness test based on new material function that will be used to replace existing disc brake material. Harness test showed that castings are using oxidized ash powder with higher temperature and produce resistant material than in low temperature. Casting mixture with oxidized bottom ash 100oC produce specific abrasion of 2,008 x 10-6 mm2/kg, produce of 1,814 x 10-6 mm2/kg for oxidized 200oC, and produce of 1,675 x 10-6 mm2/kg for oxidized 300oC.

KOROSI BAJA KARBON API 5L GRADE B SEBAGAI FLOWLINE PRODUKSI GAS ALAM Setiawan, Adhi; Fajrin, Alfinura; Munir, M. Miftahul; Ari, M.
Journal of Research and Technology Vol 4, No 1 (2018)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Corrosion that occurs in a gas flowline is a serious problem because it can cause leaks that lead to material loss and environmental pollution. The aims of this research were to analyze the corrosion occurred in gas flowline of carbon steel 5l Grade B and the effect of inhibitor TIC-8002 GCI to the corrosion rate of metal. This research was conducted using SEM-EDX to analyze and produce various types of metals and corrosion crust. Metals corrosion test and the effect of inhibitors on the corrosion rate of metals were carried out by linear polarization methods. The result of SEM-EDX showed that inner pipe surface occurred pitting corrosion caused by dissolved chloride ions in the electrolite that flows in the pipeline. The result of XRD showed that corrosion products of carbon steel were Fe2O3 and FeOOH. The result of linear polarization showed that the corrosion rate of steel about 0.642 mmy without using inhibitor. The addition of an inhibitor can reduce the corrosion rate in carbon steel. The increase in inhibitor concentration from 10 ppm to 50 ppm can reduce the corrosion rate from 0.633 mmy to 0.394 mmy along with an increase in inhibition efficiency from 1.32% to 38.6%.

Co-Authors Adhi Setiawan Fajrin, Alfinura Munir, M. Miftahul Nilasari, Arita Rochma

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