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All Journal Jurnal Akuakultur Indonesia JURNAL KIMIA SAINS DAN APLIKASI Jurnal Sains Materi Indonesia Sinergi JURNAL INTEGRASI PROSES JFA (Jurnal Fisika dan Aplikasinya) CHEMPUBLISH JOURNAL Jurnal Teknik Mesin Syntax Literate: Jurnal Ilmiah Indonesia Indonesian Journal of Chemistry JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Rekayasa Energi dan Mekanika Pharmaceutical And Biomedical Sciences Journal (PBSJ) Makara Journal of Science Makara Journal of Technology International Journal of Innovation in Mechanical Engineering and Advanced Materials
Alfian Noviyanto
Universitas Mercu Buana
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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THE EFFECT OF ADDITION GREEN INHIBITOR D-GALACTOSE ON CORROSION RATE OF ALUMINUM ALLOY 5052 IN SULFURIC ACID (H2SO4) MEDIA Muhajirin Muhajirin; I. G. A. Arwati; S. Hartati; H. Hakim; Alfian Noviyanto; Arramel Arramel; T. Zakly
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 4 No. 2 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v4i2.16610

Abstract

Aluminum alloy 5052 (Al5052) is one of the metals used as a bipolar plate in a Proton Exchange Membrane Fuel Cell (PEMFC) due to has its light mass and being easy to form, and, has high conductivity and resistivity properties. This material is prone to corrosion and current knowledge to protect its surface is currently lacking. The product of PEMFC produces electrical energy, hot steam (313 – 353 K), and water. These conditions have an impact on the degraded bipolar plate caused by the acidic nafion membrane. This increases the risk of corrosion on the cathode side of the bipolar plate. Coating with a green inhibitor using the electrophoretic deposition technique (EPD) is one way to deal with the corrosion that occurs. The analysis method used electrochemical with potentiodynamic polarization techniques, electrochemistry impedance spectroscopy (EIS), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). In this study, green inhibitor D-galactose was used with a concentration of 0.5 – 1.5 g and an, EPD time of 15 – 45 minutes in 0.5 M sulfuric acid (H2SO4) media pH 1-4. Potentiodynamic polarization analysis at the lowest corrosion current value (Icorr) at demonstrates (the inhibitor concentration of 1.5 g with an and EPD time of 45 minutes) resulted corrosion rate of Al5052 before EPD was 0.0075 mmPY while the corrosion rate of Al5052 after EPD was 0.0041 mmPY with (inhibitors efficiency 45.2%). The FTIR spectrum, broad peak appeared in the range of 3000-3600 cm-1, which refers to the formation of hydrogen bonding of hydroxyl group. Methyl group of D-galactose also appear on 2918 cm-1 and 2850 cm-1 which attributed to =CH2 asymmetric stretch and −CH3 symmetric stretch, respectively. Carbonyl group on 1500 – 1700 cm-1 represent C=O bond of amide, and aldehyde. Peak 1097 – 1035 cm-1 which attributed to C-O were connected to the secondary and primary alcohols. The resistance value for Al5052 before and after EPD are 1.2 kΩ/cm2 after and 2.2 kΩ/cm2, respectively. Here we find that the resistance increases with the increasing concentration and time of EPD. The results cross section Al5052 within average 29.8 μm, and morphology with SEM Al5052 before EPD showed pitting corrosion. On the other hand, the image of Al5052 inhibitor coating 1.5 gr with EPD of 45 minutes shows a smooth surface and visible black lumps, suggesting Al5052 is successfully reduced a corrosion rate by the D-galactose. Our simple and robust method inferred a protection route towards a viable and physically stable green inhibitors.
A Review : The Effect of Nanoparticles in Vegetable Oil on Surface Roughness in Machining Processes Ayu Pratiwi; Alfian Noviyanto
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol. 15 No. 01 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v15i01.36830

Abstract

The use of mineral oil based and synthetic coolants in machining processes remains dominant, despite their negative impacts on the environment and occupational health. Vegetable oils have emerged as an environment friendly alternative due to their biodegradable, non toxic properties, and renewable sources. However, thermal and tribological limitations restrict their performance under extreme conditions. To address this, various studies have investigated the addition of nanoparticles to vegetable oils to form nanofluids with improved lubrication and cooling performance. Nanoparticles such as aluminum oxide (Al₂O₃), molybdenum disulfide (MoS₂), and graphene have been shown to enhance thermal conductivity, reduce friction, and form protective tribological layers. This literature review discusses the effect of the combination of vegetable oil and nanoparticles on surface roughness in machining processes. The results show that nanofluids can significantly reduce surface roughness, particularly in Minimum Quantity Lubrication (MQL) systems. The effectiveness of nanofluids is greatly influenced by the type, size, and concentration of nanoparticles, where the optimal concentration varies but remains within a certain range (e.g., 2.5% for Al₂O₃). This study emphasizes that the development of plant-based nanofluids is a strategic approach toward efficient, environment friendly, and sustainable machining.
Co-Authors Aat Safaat Absirin, Muhammad Fahrurrozi Aga Ridhova Agung Trisdian Agus Sukarto Wismogroho Agus Sukarto Wismogroho Agus Sukarto Wismogroho Agus Sukarto Wismogroho, Agus Sukarto Ahmad Syarif Akmal Zulfi Amal, Muhamad Ikhlasul Amirudin Wibowo Arif Tjahjono Arramel Arramel Ayu Pratiwi Ayu Pratiwi, Ayu Bagas Haqi Arrosyid Dafit Feriyanto Dedi Cahyadi Dedik Romahadi Desrilia Nursyifaulkhair Didik Aryanto Didik Aryanto Didin Agustian Permadi Dwiarto, Agus Erlina Yustanti Faisal Akbar Faras Afifah Fiqhi Fauzi Gugus Handika H. Hakim Hadi Pranoto Hanifah Setyaning Budi Hardi Junaedi Henry Kasmanhadi Saputra HIDAYATULLAH, ARIEF Huda, Ihsanul I. G. A. Arwati Ihsanul Huda Imam Aschuri Iwan Setiawan Julia Angel Kartamiharja, Ujang Komarudin Asdani Kurniawan Eko Saputro Kurniawan Kurniawan Leanddas Nurdiwijayanto Lia Dwi Setyaningsih Mahliga Dwi Rezky Putri Mauladani, Syifa Mi'raj Shabrin Jamil Mi'raj Shabrin Jamil Michael Schwarze Muhajirin Muhajirin Muhamad Firmansyah Rizkiawan Putra Muhammad Fahroji Nishimura, Toshiyuki Nurato Nurul Taufiqu Rochman Nurul Taufiqu Rochman Nurul Taufiqu Rochman Nurul Taufiqu Rochman Nurul Taufiqu Rochman Nurul Taufiqu Rochman Pandriana, Aap Pipit Fitriani Prabowo, Wendy Tri Pramitha Yuniar Diah Maulida Pratama, Aprian Fajar Rahmawati, Asri Ifani Ratih Amalia Reinhard Schomäcker Retno Kusumaningrum Riny Yolandha Parapat S. Hartati Sabrina Dahlizar Sagir Alva Samir Sani Abdulmalik Saputra, Rizki Nugraha Sri Harjanto Sukmarani, Galuh Sulthoni Akbar Supaat Zakaria T. Zakly Toto Sudiro Wahyu Bambang Widayatno Wahyu Bambang Widayatno Wahyu Bambang Widayatno, Wahyu Bambang Wisnu Ari Adi Yulianto Agung Rezeki Yuono Yuono Zamaludin Zamaludin