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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Prosiding Semnastek Jurnal POLIMESIN Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi International Journal of Engineering, Science and Information Technology Malikussaleh Journal of Mechanical Science Technology Jurnal Teknologi Kimia Unimal

Muhammad Muhammad

Program Studi Teknik Material, Universitas Malikussaleh

Author-ID : 5358796

Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

Published : 8 Documents Claim Missing Document

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Articles

Analysis of Temperature Variations, Types of Insulation and Coating on Corrosion Under Insulation on ASTM A53 Pipes Reza Putra; Muhammad Muhammad; T Hafli; Nurul Islami; Arpan Apandi S
International Journal of Engineering, Science and Information Technology Vol 2, No 1 (2022)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Corrosion Under Insulation (CUI) can be described as localized corrosion that forms as a result of the penetration of water or moisture through an insulating material. The pipe material used is of the ASTM A53 standard and the fluid used in seawater because almost all industries are located on the coast. This type of coating is carried out on the test pipe using Meiji Epoxy Filler. The test method is carried out by flowing seawater fluid in pipes with water temperature variations of 30°C, 50°C, and 70°C. This pipe varies the type of insulation by using glasswool and Rockwool (ASTM G 189-07). This insulation is conditioned in a wet state by giving 2 ml of seawater drops with a pH value of 4 per 6 hours. The test equipment is divided into 3 series according to temperature variations with 4 test specimens and 2 coating variations respectively. The test time was carried out for 336 hours to obtain the corrosion rate results using the ASTM G31-72 weight loss method. The results showed that the type of Glasswool insulation with specimens coated had the lowest corrosion rate value of 0.00483 mmpy at a temperature of 30°C when compared to the same type of treatment on Rockwool insulation of 0.00724 mmpy or an increase of 2.41 times. This study shows that the type of insulation, temperature variation, and coating greatly affect the rate of corrosion and the type of corrosion that occurs is uniform corrosion.

Analisa Laju Korosi Pada Plat Baja ASME SA-283 Pada Daerah Splash Zone Reza Putra; Muhammad Muhammad; Abdul Rahman; M. Rifai Adithia
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Research on the corrosion rate of ASME SA-283 alloy steel has been carried out in the coastal environment. Corrosion is a decrease in the quality of the material that occurs due to the environment, where the coast is a splash zone area which is rich in salt content as a trigger for corrosion. Alloy steel is a material that is used widely as part of the construction of dock buildings on the coast The study was carried out by giving coating defects to ASME SA-283 material and varying the salinity in the splash zone area, where the coating thickness ranged from 350 μm - 410 μm and salt splash testing was carried out for 15 days. The results of the salt splash test show the types of corrosion that occur, namely pitting corrosion and unifrom corrosion. The largest corrosion rate occurred in the area that experienced a coating defect of 1,705 mm / year. The effect of coating on the corrosion rate is very large and the effect of coating defects on corrosion growth is quite high because the coating that functions as a protective specimen has been lost. The aim of this study are expected to become a reference for coating protection data in preventing corrosion growth in coastal environments. Keywords— Coating Defects, Corrosion Rate, Splash zone, Salinity.

PENGARUH FAKTOR LINGKUNGAN TERHADAP POTENSI KOROSI PADA PIPA AIR BAWAH TANAH DI JALUR KRUENG PEUSANGAN HINGGA KRUENG GEUKUEH, ACEH UTARA Reza Putra; Muhammad Muhammad; Syifaul Huzni; Syahrizal Fonna
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume IV Nomor 1, April 2018
Publisher : Universitas Sultan Ageng Tirtayasa

Dalam dunia industri penggunaan jaringan pipa merupakan salah satu elemen yang memegang peranan penting yaitu sebagai rantai produksi. Kegagalan yang biasa terjadi pada struktur pipa baja yang ditanam di dalam tanah biasanya terjadi karena serangan korosi. Penelitian ini dilakukan untuk melakukan evaluasi terhadap pipa baja penyalur air baku dari Krueng Peusangan hingga Krueng Geukuh, Aceh Utara dengan melakukan pengukuran nilai potensial, resisitivitas tanah dan PH tanah. Pengukuran potensial menggunakan metode Half Cell dengan elektroda referensi Cu/CuSO4 yang dilakukan pada testbox yang tersedia dilapangan, resisitivitas menggunakan metode Wenner dan pengukuran pH langsung dilokasi penelitian. Hasil penelitian menunjukkan lokasi Desa Reuleut merupakan lokasi yang memiliki nilai potensial -915 mV dengan nilai resistivitas tanah terendah yaitu 442.65 pada lokasi persawahan sehingga dapat berpotensi korosi tingkat ekstrim dengan kadar pH asam. Hasil keseluruhan menunjukkan bahwa pipa bawah tanah terproteksi dari serangan korosi dengan kondisi lingkungan tanah yang bervarasi. Pada lokasi Desa Pinto Makmur yang juga merupakan daerah persawahan, dimana memiliki nilai potensial sebasar -973 mV dengan kadar pH 6.5, mengisyaratkan kondisi lingkungan ini membutuhkan perhatian khusus untuk mencegah terjadinya reaksi korosi pada pipa bawah tanah.

PEMETAAN POTENSI KOROSI PADA JALUR PIPA BAWAH TANAH MENGGUNAKAN INTERPOLASI KRIGING Reza Putra; Muhammad Muhammad; Syifaul Huzni; Nurdin Ali
Prosiding Semnastek PROSIDING SEMNASTEK 2017
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Telah dilakukan penelitian untuk memetakan potensi korosi pada jalur pipa bawah tanah menggunakan metoda interpolasi Kriging. Lokasi penelitian terletak di Aceh Utara hingga Bireun, dengan garis lintang 5°11' N dan 5°15' N, dan bujur 96°48' E dan 97°03' E. Pengukuran resistivitas tanah menggunakan metoda Wenner, dengan variasi jarak 150cm, 300cm dan 450cm. Hasil pengukuran ini diinterpolasi dengan metoda Kriging untuk memperoleh pemetaan. Hasil penelitian menunjukkan distribusi nilai resistivitas beragam dengan kontur yang bervariasi berdasarkan kedalaman pengukuran. Secara keseluruhan lokasi penelitian berpotensi korosi ringan, korosi menengah dan korosi berat.

Review Of Multicrystalline Silicon Wafer Solar Cell Processing Azwar Azwar; Luthfi Luthfi; Muhammad Muhammad
Jurnal POLIMESIN Vol 19, No 1 (2021): February
Publisher : Politeknik Negeri Lhokseumawe

The challenges for searching and utilizing of new and sustainable energy sources especially solar cell electricity. The major obstacle of using solar cells for electricity generation has been a much higher price when compared to the price of electricity generated from the traditional sources. The photovoltaic industry needs to put an enormous pressure and optimization at every stage of the photovoltaic manufacturing chain of multicrystalline silicon wafer solar cell processing in order to reduce cost. Processing of multicrystalline silicon solar cells is starting by silicon wafer preparation, etching and texturing, saw damage etching, surface texturing, phosphor diffusion edge isolation, phosphor diffusion, edge isolation, silicon nitride deposition for antireflection coating, and metallization process that consist of screen printing ag front side, screen printing of al back side, drying and firing and formation al back surface contact. Mechanical stability of silicon wafer became a serious issue due to reduction of wafer thickness, so probability for wafer to breakage is high; investigate the mechanism of wafer breakage is important to reduce breakage. The present of micro cracks reduces the mechanical strength of wafer significantly and wafer breakage will increase, because crack will start from the existing micro crack and that will propagate easier with presence of the stress. Mechanical stability is increase significantly after the etching process; on the other hand the screen printing process will reduce wafer strength. Etching of saw damage, that is induced during wafer slicing, and metallization of the surfaces are 2 crucial processing steps in the manufacturing of mc-silicon solar cells

Uji Mekanik Komposit Berpenguat Serat Pandan Duri dan Resin Polyester Dengan Variasi Komposisi Metoda Fraksi Berat Muhammad Muhammad; Reza Putra
Jurnal Teknologi Kimia Unimal Vol 6, No 2 (2017): Journal Teknologi Kimia Unimal - Nopember 2017
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v6i2.476

Tujuan dari penelitian ini adalah untuk memperoleh nilai kekuatan tarik optimaldari komposit berpenguat serat pandan duri dan resin polyester melaluiperbandingan variasi komposisi metoda fraksi berat. Proses pembuatan spesimen uji dengan bahan serat pandan duri dan resin polyester sesuai dengan standar uji tarik ASTM D3039. Variasi perbadingan fraksi berat untuk resin dan seratadalah 30% : 70% ; 40% : 60% dan 50% : 50%. Hasil penelitian menunjukkan nilai kekuatan tarik maksimal adalah pada perbadingan komposisi komposit 40%berat resin polyester dan 60 % berat serat pandan duri, yaitu 0.45 Kg.f/mm2 dengan nilai beban maksimum rata yang mampu ditahan sebesar 43.87 Kg.f. Darihasil penelitian ini dapat disimpulkan komposit berpenguat serat pandan duridengan resin polyester telah memenuhi nilai standar minimum untuk sebuahmaterial baru fibreboard berdasarkan ISO 17064:2010.

ANALISA RESISTIVITAS TANAH TERHADAP PREDIKSI KOROSI PADA PIPA DISTRIBUSI AIR BERSIH DI KAMPUS UNIMAL BUKIT INDAH Reza Putra; Muhammad Muhammad; Abdul Rahman; Teuku Hafli; Nurul Islami
Malikussaleh Journal of Mechanical Science Technology Vol 6, No 1 (2022): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v6i1.8314

This study aims to predict corrosion in water distribution pipes at the Bukit Indah Unimal campus. Corrosion is the damage to chemical elements in a metal that changes the original properties of the metal. There are four kinds of processes for corrosion, namely, one anode loses electrons, two cathodes accept electrons, three liquids and four metals connect the cathode and anode. The geoelectric resistivity method is used to determine the soil resistance properties of the subsurface layer. The wenner 4 pin method is a geoelectric data retrieval that is often used with the same pin spacing arrangement. Res2Dinv is software that is on a computer to generate 2-dimensional images from the resistivity data obtained and determine the layer below the surface. From the inverse results, the smallest error value can be obtained when iterating up to 4 times, namely Java Road 45.3%, Sulawesi Road 49.6%, Kalimantan Road 30.6%, Sumatra II Road 46.1%, Main Gate 41.1% Sumatra I 23.4%. Based on the data, the measurable results below the surface range from 0.05 m to 5 m.

ANALISA PENGARUH PERBANDINGAN FRAKSI BERAT PARTIKEL KAYU SEMARAM DAN PENGIKAT RESIN POLYESTER TERHADAP SIFAT MEKANIK KOMPOSIT Muhammad Muhammad; Reza Putra; Asnawi Asnawi; Edy Yusuf; Muhammad Sayuti
Malikussaleh Journal of Mechanical Science Technology Vol 6, No 1 (2022): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v6i1.8315

Tujuan dari penelitian ini adalah untuk mengetahui kekuatan bending yang paling optimal dari komposit serbuk kayu dengan variasi fraksi berat serbuk 10% Serbuk Kayu + 90% Resin BQTN 157, 20% serbuk kayu+80% resin BQTN 157 dan 30% serbuk kayu+70% Resin BQTN 157. Untuk Proses pembuatan spesimen uji dengan bahan serbuk kayu dan resin polyester sesuai dengan standar ASTM D790. Komposisi 10%:90% dengan hasil rata-rata 37,814 Kgf untuk beban maksimum dan 0,376 Kgf/mm² untuk kekuatan tekan. Nilai kerapatan tertinggi pada material berkomposisi 10% serbuk kayu semaram dan 90% resin adalah 1,193 gr/cm3. Sedangkan untuk komposisi 20% serbuk kayu semaram dan 80% resin hasil yang didapat 1,046 gr/cm3. Dan untuk komposisi 30% serbuk kayu semaram dan 70% resin hasil yang didapat 1,095 gr/cm3. Proses pencampuran yang terbaik terjadi pada specimen dengan komposisi 10% serbuk kayu dan 90% resin. Jenis patahan yang terjadi berupa getas

Co-Authors Arpan Apandi S Asnawi Azwar Azwar Edy Yusuf Laksono Trisnantoro Luthfi Luthfi M. Rifai Adithia Mudi Hafli, Teuku Muhammad Sayuti Nurdin Ali Nurul Islami Reza Putra Syahrizal Fonna Syifaul Huzni T Hafli

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