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All Journal Jurnal Teknoin Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Rekayasa Mesin Journal of Innovation and Applied Technology Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Specta Journal of Technology International Journal of Industrial Research and Applied Engineering Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Kedaymas Prosiding Seminar Nasional Program Pengabdian Masyarakat Penamas: Journal of Community Service PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Journal of Materials Exploration and Findings Makara Journal of Technology eProceedings of Art & Design Eduvest - Journal of Universal Studies Tintamas: Jurnal Pengabdian Indonesia Emas

Sulistijono Sulistijono

Departemen Teknik Material Dan Metalurgi, Institut Teknologi Sepuluh Nopember

Author-ID : 391151

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Other

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Karakterisasi Perilaku Laju Korosi Plat Body Automobiles Terhadap Larutan 0,5 M H2SO4 Dengan Metode Wet-Dry Cyclic SAE J2334 Irbabulluba; Sulistijono; Hariyati P
Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Vol. 3 No. 1 (2012): April, 2012
Publisher : FT- UNDAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48056/jintake.v3i1.110

Bodi mobil sering bersentuhan langsung dengan atmosfer dan pengalaman perubahan cuaca, yang dapat menyebabkan pembentukan dan pengeringan lapisan tipis elektrolit. Siklus cuaca ini bisa mangakibatkan terjadinya korosi siklik (cyclic corrosion) pada plat bodi mobil. Korosi ini bisa terjadi akibat serangan hujan asam ataupun daerah yang memiliki kadar sulfur tinggi. Penelitian ini menggunakan spesimen dari plat bodi mobil Mercy W 124 (Eropa / Spesimen M), Innova (Indonesia / Spesimen T) dan CR-V (Jepang / Spesimen C) sebagai pembanding. Dan larutan yang digunakan dalam penelitian ini adalah 0,5 M H2SO4. Spesimen tersebut diberi perlakuan kondisi wet – dry cyclic dengan interval waktu 20 siklus, 30 siklus, 40 siklus, 50 siklus, dan 60 siklus sebagai simulasi perubahan cuaca. Spesimen yang mengalami laju korosi terbesar adalah spesimen T = 10.07301613 MPY, kemudian spesimen C = 6.292531955 MPY dan terkecil adalah spesimen M sebesar 2.092593866 MPY. Laju korosi wet – dry cylic mengalami tren laju korosi meningkat terhadap bertambahnya siklus. Dan uji immersion dilakukan pada interval waktu 80 jam, 120 jam, 160 jam, 200 jam, dan 240 jam sebagai pembanding laju korosi. Laju korosi uji immersion terbesar pada waktu 80 jam atau di awal uji, yaitu untuk spesimen T = 4.155330194 MPY, spesimen C = 2.989416145 MPY dan spesimen M sebesar 2.804416054 MPY. Tren laju korosi pada uji immersion ini menurun dengan bertambahnya waktu pencelupan. Karakterisasi dilakukan dengan mengidentifikasi secara visual menggunakan XRF, SEM dan XRD. Dari pengujian tersebut akan diperoleh data karakterisasi yaitu bentuk korosi yang terjadi adalah korosi uniform, intergranular corrosion dan indikasi pitting corrosion. Produk korosi yang terbentuk meliputi karat coklat γ-Fe2O3 (Ferrit Oxide), Fe2(SO4)3 (Iron Sulfat), Fe3O4 (karat hitam) ) dan Zink Oxide (ZnO).

Analysis on the Effectiveness of Extract Mixture of Anthouse Plant (Myrmecodia Pendans) and Red Pepper Vine (Piper Ornatum) as a Green Corrosion Inhibitor on the Corrosion Rate of API 5L Grade B Steel in H2SO4 1M Solution Tubagus Noor Rohmannudin; Agung Purniawan; Sulistijono -; Bintang Ayu Nuraeni
International Journal of Industrial Research and Applied Engineering Vol 3, No 1 (2018)
Publisher : Institute of Research and Community Outreach - Petra Christian University

The analysis of the mixture of anthouse plant (Myrmecodia pendans) and red pepper vine (Piper ornatum) in H2SO4 1M solution had been studied by weight loss, Electrochemical Impedance Spectroscopy (EIS), Fourier-Transform Infrared Spectroscopy (FTIR), and Spectrometer test. The Myrmecodia pendans and Piper ornatum were chosen because they contain antioxidants that can inhibit the corrosion rate. The specimen used in this study was API 5L Grade B steel in H2SO4 1M solution. The compositions used in this study were 100% MP : 0% PO, 75% MP : 25% PO, 50% MP : 50% PO, 25% MP : 75% PO, and 0% MP : 100% PO (MP: Myrmecodia pendans, PO: Piper ornatum). FTIR testing result shows that a passive layer was formed by O, H, and N bonds. The weight loss method shows that the highest efficiency of 52.43% was achieved by 50% MP : 50% PO mix composition. Polarization testing shows that the corrosion rate decreased drastically with the addition of 50% MP : 50% PO mix composition, i.e., from 36.32 mpy to 7.93 mpy, due to the passive layer formed on the steel surface. EIS results show the presence of resistance solution (Rs), charge transfer resistance (Rct), and CPE. The adsorption free energy value of the mixture of Myrmecodia pendans and Piper ornatum was −10.02 kJ/mol and it was a physical adsorption.

PELATIHAN OPTIMASI DESAIN GROUNDBED PADA SISTEM SACP UNTUK PIPA BAJA DI TANAH KAWASAN ITS SEBAGAI PENINGKATAN KOMPETENSI GURU DAN SISWA SEKOLAH ALAM INSAN MULIA SURABAYA Tubagus N Rohmannudin; Sulistijono Sulistijono; M Rizal Pambudi
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v3n1.p36-40

Groundbed adalah anoda yang dibungkus dengan backfill sebagai salah satu variabel di dalam sistem proteksi katodik di dalam tanah. Salah satu hal yang harus diperhatikan dalam teknologi groundbed adalah komposisi penyusun backfill. Backfill berfungsi sebagai penjaga permukaan anoda supaya selalu tetap basah. Hal ini ditujukan untuk memudahkan aliran arus proteksi dari anoda ke katoda melalui media tanah. Selain itu, dimensi dan perbandingan berat antara anoda dan backfill di dalam groundbed juga mempengaruhi kinerja dari grounbed. Kenyataan di lapangan seringkali terjadi kesulitan dalam pembuatan dan instalasi groundbed sehingga banyak dijumpai kesalahan-kesalahan yang mengakibatkan groundbed tidak bekerja secara maksimal. Oleh sebab itu optimasi pembuatan grounbed dirancang untuk meningkatkan kemampuan dan kompetensi dalam teknologi groundbed. Sekolah Alam Insan Mulia merupakan salah satu SMA di Surabaya yang dijadikan objek pengembangan desain grounbed. Hal ini ditunjukkan dengan antusiasnya para guru dan Siswa Sekolah Alam Insan Mulia (SAIM) ketika tim pengabdian masyarakat menawarkan program pelatihan ini. Oleh sebab itu Teknik Material dan Metalurgi FTI-ITS sebagai Institusi Perguruan Tinggi tergerak untuk melakukan kegiatan pengabdian masyarakat dengan melaksanakan Pelatihan Teknologi Groundbed pada Sistem SACP (Sacrifacial Anode Cathodic Protection) sebagai Peningkatan Kompetensi Sekolah Menengah Tingkat Atas/ Kejuruan/ Sederajat. Pelatihan ini diadakan di Teknik Material dan Metalurgi FTI-ITS. Metode Pelatihan yang digunakan adalah presentasi materi oleh Tim Pengabdi yang dilanjutkan dengan eksperimen di Laboratorium. Hasil pelatihan ini menunjukkan adanya peningkatan wawasan dan pemahanan Guru dan Siswa SAIM yang dapat dilihat dari hasil uji tulis di akhir program.

PERANCANGAN PROTEKSI ARUS PAKSA PADA PIPA BAJA API 5L DENGAN COATING DAN TANPA COATING DI DALAM TANAH Tubagus Noor R; Sulistijono Sulistijono; Azmi Mahiri; M. Rizal Pambudi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Impressed Current Cathodic Protection (ICCP) is a metal protection system from corrosion using DC current source from outside the system. The positive pole of DC current source is connected to the inert anode while the negative pole of the DC current source connected with metal or cathode to be protected from corrosion attack. ICCP has several advantages such as easy to control the flow of protection, is easy to detect damage to the protection system, and can be used in various types of cathodes and a different environment, and others. Research (Tito, 2002) mentions the advantages of the ICCP system is that it can be designed for applications with a high degree of flexibility because they have wide range of current output capacity. Itâ€™s means that current demand can be set either manually or automatically by changing the output voltage in accordance with the needs, another advantage of this system can protect an area that is large enough. The studies regarding the ICCP is progressing towards design in tune with the cathode and the environment, this is due to the cathode and a certain kind of environment will require different designs. This research is designed ICCP on the cathode API 5L grade B with different coatings in different soil moisture conditions. At the cathode with different coating thicknesses showed that the thicker the coating, the current required protection will decrease, while the environmental conditions with different humidity, the higher the soil moisture, the resulting flow needs protection also increased Keywords: corrosion, cathodic protection, impressed current, API 5L.

Study on Antibacterial of Chitosan/Hydroxyapatite Doped Magnesium Composite as a Material for Bone Graft Applications Laksono, Andromeda Dwi; Jr., Teodoro A. Amatosa,; Sitorus, Hilda Pebrianti Octaviana; Asih, Wentika Putri Kusuma; Sulistijono, Sulistijono
Makara Journal of Technology Vol. 23, No. 3
Publisher : UI Scholars Hub

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

Hydroxyapatite (HAp) is one of the constituent minerals of bone and teeth, that has been widely used for synthesizing bone graft. Due to the limitation on properties of the hydroxyapatite, it is doping with Magnesium (HAp-Mg). The addition of Chitosan (Chi) was expected to improve the antibacterial properties of HAp-Mg. The present research aims to study the influence of Chitosan with 0, 5, 15, and 25 wt% addition on biocompatibility properties of Chi/HAp-Mg composite. HAp-Mg was synthesized using the sol-gel method; meanwhile, Chi/HAp-Mg composite was manufactured by mixing Chitosan in acetic acid, and HAp-Mg was added into the mixture. The synthesized samples were characterized using XRD and SEM. In vitro antibacterial activities of the Chi/HAp-Mg composite were evaluated against Escherichia coli bacteria. Biocompatibility analysis from antibacterial activity showed that composite with the optimal composition on the addition of 15 wt% Chitosan has the best ability in inhibiting the growth of E. coli bacteria.

UPAYA SERTIFIKASI HALAL PRODUK UMKM UNTUK MEMPERMUDAH KEWIRAUSAHAAN MANDIRI Tubagus Noor Rohmannudin; Sulistijono Sulistijono; Diah Susanti; Fakhreza Abdul; Haniffudin Nurdiansyah; Mavindra Ramadhani
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Publisher : Jurnal KeDayMas: Kemitraan dan Pemberdayaan Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14414/kedaymas.v2i2.3068

Kegiatan ini dilaksanakan dengan latar belakang untuk mendorong perkembangan dan pertumbuhan ekonomi Indonesia terutama pengembangan ekonomi syariah di tingkat nasional, dan untuk membantu dan mempermudah kewirausahaan mandiri atau UMKM untuk menjual produknya dan meningkatkan ekonominya sesuai masterplan ekonomi Syariah Indonesia. Kegiatan ini dilaksanakan dengan awal-awal mengikuti pelatihan sertifikasi halal yang diadakan oleh ITS Tekno Sains. Sertifikasi halal dilakukan bertahap dengan kontak UMKM masing-masing yang bertotalkan 3 UMKM yaitu Sinom Mbok Na, Pisang Monyet, Keripik Melinjo Yes dari dibantu pembuatan NPWP, NIB, pengajuan izin pengedaran BPOM dan terakhir sertifikasi halal.

PENDAMPINGAN SERTIFIKASI HALAL PRODUK MAKANAN PADA UMKM DEMI MENDUKUNG PERKEMBANGAN USAHA MANDIRI Tubagus Noor Rohmannudin; Sulistijono Sulistijono; Diah Susanti; Fakhreza Abdul; Haniffudin Nurdiansyah; Mavindra Ramadhani
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 2 (2023): martabe : jurnal pengabdian kepada masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i2.442-448

Adanya kegiatan ini diharapkan mampu mendorong perkembangan dan pertumbuhan ekonomi Indonesia, khususnya pengembangan ekonomi syariah di tingkat nasional, membantu wirausaha mandiri atau UMKM untuk menjual produk, dan untuk meningkatkan perekonomian. Kegiatan ini diawali dengan mengikuti pelatihan sertifikasi halal yang dilakukan oleh ITS Tekno Sains. Total UMKM yang dibantu dalam sertifikasi halal ini adalah 9 UMKM dengan rincian: Pawon Jeng Ninik, Toko Putri Kue, Sofi Pastry, Telur Asin Azza, Rizky Cookies, Snack Hidayah, Mandiri Ladrang, Klemben Jadoel, Sambal Pecel Pawone Murah. Proses pendampingan dimulai dari pembuatan NPWP, NIB, pengajuan surat izin edar BPOM, hingga pengajuan sertifikasi halal.

Design of Demodulation Circuit And Arduino Uno Microcontroller Syncronization For Capacitance Sensor Menasita Menasita; Mirnawati Mirnawati; Sulistijono Sulistijono
SPECTA Journal of Technology Vol. 3 No. 1 (2019): SPECTA Journal of Technology
Publisher : LPPM ITK

An AC signal is produced by oscillator or a similar circuit that includes demodulation. In addition to thedemodulation circuit, there is also need interface circuit which include signal conditioning, signal processing anddata acquisition. So that, the frequency can be read digitally. The purpose of this research was to createdemodulation circuit in form of colpitts-crystal oscillator and microcontroller. This research carried out severalstage. There are making colpitts-crystal oscillator, microcontroller synchronization, data retrieval and processingoutput. The DC voltage variations are 3.2 V, 9 V and 15.9 V and capacitor variations are 470 pF, 4.7 nF and 33nF. Output data in form of frequencies measured by using oscilloscope. Futhermore, the data is tested for accuracyand precision. From the test result using 470 pF, 4.7 nF and 33 nF capacitors when given 3.2 V input voltage, theprecision values were 91.35%, 93.06% and 96.17% and the accuracy value were 97.72%, 97.96%, and 98.17%.For 9 V input voltage, the precision values were 99.82%, 97.67% and 97.52% and the accuracy value were 99%,98.90%, and 98.92%. Whereas 15.9 V input voltage, the precision values were 93.43%, 96.92% and 93.66% andthe accuracy value were 98.08%, 98.75%, and 97.60%. From these data, it can be concluded that a good voltagevalue used in this ciecuit is 9 V with 470 pF capacitor where the precision value was 99.82% and the accuracyvalue was 99%.

Development of Battery Materials to Function as Corrosion Protection on Car Body Plates Rohmannudin, Tubagus Noor; Sulistijono, Sulistijono; Adrinanda, Noval; Dharma, Faridz Wira; Areliano, Samuel
Journal of Materials Exploration and Findings Vol. 1, No. 3
Publisher : UI Scholars Hub

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

Most car bodies made for mass production are made from steel or aluminum. Both are strong metals, but steel is cheaper than aluminum and is more commonly used in lower-end cars for a broader consumer range. The weakness of steel compared to aluminum is that it is susceptible to corrosion under certain conditions, and thus it may deteriorate over time without proper care. To prevent corrosion, modern cars are coated with paint to prevent direct contact with the environment. As a second line of protection, a car battery can be connected to the body to create an impressed current cathodic protection circuit. In this study, a steel sample from the car body is connected to an ICCP or impressed current cathodic protection circuit with a small 12v battery and a graphite anode. The specimen's paint layers are removed through grinding and tested in water, wet soil, and open air. The specimens in water and wet soil experienced minimum corrosion during the testing period, while the ones in open air experienced significant corrosion products on the surface. Overall, due to the small specimen size compared to battery output, all specimens experience a case of overprotection of up to -5516 mv in wet soil and -2666 mv in water. Due to limitations, we are unable to do proper measurements in the open-air environment.

PEMETAAN KOROSIFITAS ATMOSFER MENGGUNAKAN LOGAM BAJA KARBON RENDAH DAN KARBON TINGGI PADA WILAYAH KOTA SURABAYA Rohmannudin, Tubagus Noor; Noerochim, Lukman; Sulistijono, Sulistijono; Achly, Fariza Hafizh; Tanjung, Rifqi Aulia
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1653

Corrosion of metals is inevitable. One of the factors that affect corrosion is environmental conditions that contain pollutants like SO2, NO2, and Cl- which are found in many industrial and seaside areas. Surabaya is an area that has 2 types of conditions. In addition, Surabaya is the capital of the province where infrastructure development is running rapidly. Thus, this study maps the level of atmospheric corrosion in five areas in Surabaya by collecting corrosion rate data for 4 months with weight loss method using AISI 1020 Steel and SK5 Steel as test metals. XRD and SEM-EDX tests were conducted to compare the corrosion results. The average corrosion rate of low carbon steel was 0,6561 mpy and high carbon steel was 1,2523 mpy. The results concluded that the high level of atmospheric corrosivity of low carbon steel is in Sukomanunggal, Bulak, Rungkut, Pakal, Krembangan, and Bubutan sub-districts. The medium level is in Tegalsari, Gubeng, Tenggilis Mejoyo, Karang Pilang, Jambangan, Sawahan, and Dukuh Pakis sub-districts. The low level is in Lakarsantri, Mulyorejo, Simokerto, Sambikerep, Genteng, and Wonokromo sub-districts. Meanwhile, high atmospheric corrosivity levels for high carbon steel are in Krembangan, Karang Pilang, Bulak, Tenggilis Mejoyo, Pakal, and Jambangan sub-districts. The medium level is in Rungkut, Sawahan, Bubutan, Wonokromo, Tegalsari, Sukomanunggal, and Lakarsantri sub-districts. The level is in Dukuh Pakis, Genteng, Gubeng, Simokerto, Sambikerep, and Mulyorejo sub-districts. This mapping is based on the level of corrosion in each sub-district which is influenced by the presence of industry and its geographical location.

Co-Authors Achly, Fariza Hafizh Adiyaksa, Muhammad Adrinanda, Noval Agung Budi Kurniawan Agung Purniawan Amrulloh, M. Farian Andiana, Rocky Andini, Risa Areliano, Samuel Ashari, Rahmat Asih, Wentika Putri Kusuma Awali, Jatmoko Azmi Mahiri Bintang Ayu Nuraeni Chusururi, Mochamad Alvan Mifta Devy Setiorini Sa’adiyah Dharma, Faridz Wira Diah Susanti Diego Pramanta Harvianto Fakhreza Abdul Farah Salsabila, Farah Faris Hizrian Maulana Faris Putra Ardiansyah Faris Putra Ardiansyah H Purwaningsih Hakim, Abdurrahman Handis Zuniandra Haniffudin Nurdiansyah Haniffudin Nurdiansyah Haniffudin Nurdiansyah Hariyati P Hariyati Purwaningsih Irbabulluba Ismail, Ika J.A. Hakim Jatmoko, Awali Jayawarsa, A.A. Ketut Jr., Teodoro A. Amatosa, Kikin Hermanto L. Noerochim Laisa, Muhammad Ikbal Laksono, Andromeda Dwi Lukman Noerochim Luthfiansyah, Candra Rizki M Rizal Pambudi M. Rizal Pambudi Mas Irfan Purbawanto Hidayat Mavindra Ramadhani Mega Ulimaz Menasita Mayantasari Menasita Menasita Mirnawati Mirnawati Moamar Al Qathafi Moh. Farid Muhammad Fachri Nafi’, Dian Naufal Gati Furqon Noor Rohmannudin, Tubagus Nurdiansyah, Haniffudin Pambudi, M Rizal R. Fajarain Rahmah, Linta Atina Ramadhani, Mavindra Ridhotullah, Aji Rinda, Sari Shaimah Rizky, Yoel Rohadi, Anggoro Rohmannudin, Tubagus N Rohmannudin, Tubagus Noor Satrianugraha, Rifqi Fernady Sidiq, Firman Sitorus, Hilda Pebrianti Octaviana Sutarsis Sutarsis Syarip Hidayat Tanjung, Rifqi Aulia Trendy Leo Pratama Tubagus N Rohmannudin Tubagus Noor R Tubagus Noor Rohmannudin, Tubagus Noor Tubagus Noor Rohmanuddin Vania Mitha Pratiwi Yunita Triana, Yunita Zaid Sulaiman

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