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All Journal Jurnal IPTEK JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Prosiding Seminar Nasional Sains dan Teknologi Terapan Journal of Applied Sciences, Management and Engineering Technology (JASMET) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan
Setyowati, Vuri Ayu
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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ANALISA PENGARUH JENIS ELEKTRODA PENGELASAN SMAW TERHADAP KEKUATAN STAINLESS STEEL 304 Setyowati, Vuri Ayu; Widodo, Eriek Wahyu Restu; Suheni, Suheni
Prosiding Seminar Nasional Sains dan Teknologi Terapan Inovasi Teknologi Infrastruktur Berwawasan Lingkungan
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Penelitian ini membahas tentang pengaruh jenis elektroda las dan sudut sambungan pada pengelasan Shielded Metal Arc Welding (SMAW) terhadap sifat mekanik material stainless steel 304 SS. Elektroda NSN-312 dengan sudut sambungan lasan 45o diperoleh kekuatan maksimal (?u) yaitu 39.97 kg/mm2 dan kekutan luluh (?y) yang lebih besar yaitu 36.3 kg/mm2. Besarnya kekuatan tarik dan kekuatan luluh tersebut dipengaruhi oleh kandungan Mn dalam elektroda NSN-312 yang membentuk karbida. Selain itu, penggunaan elektroda NSN-312 untuk proses pengelasan SMAW pada stainless stell 304 SS ini menyebabkan kampuh las terisi penuh. Hal ini mengakibatkan daerah Heat Affected Zone (HAZ) pada spesimen tersebut dapat terlihat dengan pengamatan makro.
Pengaruh Natural Aging Sebelum Proses Artificial aging Terhadap Sifat Mekanik Aluminium 6061 Wardani, Iftika Philo; Setyowati, Vuri Ayu; Suheni, Suheni; Saputro, Agung Bagus
Prosiding Seminar Nasional Sains dan Teknologi Terapan 2020: Memberdayakan Riset dan Inovasi untuk Teknologi yang Berkelanjutan
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Aluminium 6061 merupakan jenis aluminium yang saat ini sedang berkembang pesat dalam penggunaannya, karena sifatnya yang mudah di ekstruksi, mempunyai kekuatan dan kekerasan medium, mudah di machining, mudah di las, dan mempunyai sifat tahan korosi yang baik. Material ini akan mengalami natural aging apabila didiamkan selama beberapa hari pada temperatur kamar setelah proses Solution treatment. Penelitian ini ditujukan untuk mengetahui pengaruh dari natural aging sebelum artificial aging terhadap sifat mekanik material yang berupa kekerasan dan kekuatan tariknya. Penelitian ini dilakukan dengan menvariasikan temperatur dan waktu penahanan artificial aging sebesar 130, 160, 190oC dan waktu tahan 1, 3, 5 jam. Dari penelitian yang dilakukan diketahui bahwa proses natural aging tidak mempengaruhi trend naik dari kekerasan dan kekuatan material akibat kenaikan temperatur dan waktu penahanan saat artificial aging. Namun natural aging membuat kekerasan material lebih rendah bila dibandingkan dengan material yang tidak mengalami natural aging sebelum dilakukan artificial aging. Natural aging ini juga menyebabkan material tidak mengalami penurunan kekerasan saat material diberi artificial aging hingga temperatur 190oC dan waktu tahan 5 jam.
THE EFFECT OF WELDING CURRENT ON AISI 1045 STRENGTH AND CORROSION RATE Wardani, Iftika Philo; Setyowati, Vuri Ayu; Suheni, Suheni; Samudra, Ilham Prajala
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 2 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i2.1159

Abstract

Shielded Metal Arc Welding (SMAW) was widely used in industry for joining AISI 1045 steel because this method was simple, in-expensive, and the device is portable. This researched aimed to analyze the effect of variations in welding current towards material strength and corrosion rate of AISI 1045. Welding current that been used as variations in this study are 100, 110, and 120 Ampere. This research was conducted using tensile test on the weld area and immersion around the weld area in NaCl solution with 0.4% concentration. From the research that conducted, it is known that increasing in welding current made the yield strength, tensile strength, and fracture strength of material also increased. This phenomenon also happened for elongation of material in weld area. With increasing the welding current then the elongation of material also increasing. Another aspect that researched in this paper is the effect of welding current toward corrosion rate of material. From the result, it was known that increasing welding current made corrosion rate of material became faster.
Pembuatan dan Pemasangan Instalasi Penerangan Bertenaga Surya Untuk Tempat Perahu Bersandar di Kampung Nelayan Kalisari Syamsuri, Syamsuri; Maulana, Hasan Syafik; Saidatin, Naili; Rosidah, Afira Ainur; Setyowati, Vuri Ayu; Sasongko, Sukendro Broto; Noerpamoengkas, Ardi; Wardani, Iftika Philo; Lillahulhaq, Zain; Vietanti, Frizka
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 8, No 1 (2024): Mei
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2024.v8i1.2796

Abstract

Residents who work as fishermen in Kalisari tether their boats by the river close to their settlements. To maintain the safety of the boat, residents need adequate lighting around the riverbanks. However, currently, the area used as a boat mooring area does not yet have sufficient lighting. Residents set up guard posts around the boat mooring area to maintain the boat's safety and gather when an association meeting is held. The boat mooring area is also an area for children to play on the riverbank. The installation of lighting is an essential requirement for the community to make monitoring the area around the mooring area easier. The installation of solar-powered lighting is carried out to solve this problem. In this activity, the service team also provided education on solar energy for Kalisari residents. Residents were also given training in the assembly and maintenance of installed solar panels. Service activities carried out in the fishing village of Kalisari received a positive response from the community. This can be seen from the enthusiasm of the community in attending the socialization activities. The installation of lamps equipped with solar panels received positive responses from residents, marked by the community's enthusiasm.
Elektroplating Baja Karbon dengan Variasi Arus dan Lama Pelapisan terhadap Ketahanan Korosi dengan Ordinary Least Squares Regression Setyowati, Vuri Ayu; Choir, Miftahul
Prosiding SENASTITAN: Seminar Nasional Teknologi Industri Berkelanjutan Prosiding SENASTITAN Vol. 05 2025
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Elektroplating merupakan proses pelapisan logam yang banyak digunakan untuk meningkatkan ketahanan korosi dan sifat mekanik suatu material. Dalam penelitian ini, dilakukan analisis pengaruh variasi arus dan waktu pelapisan terhadap ketebalan lapisan dan laju korosi  menggunakan data eksperimen dan pendekatan machine learning (ML) metode Ordinary Least Squares (OLS) regression. Data eksperimen dikumpulkan dengan mengontrol parameter proses elektroplating, di mana variasi arus dan waktu pelapisan diterapkan untuk mengevaluasi hasil ketebalan lapisan dan laju korosi .Model OLS digunakan untuk mengidentifikasi hubungan linier antara variabel input dan output serta mengevaluasi signifikansi statistik setiap parameter. Hasil regresi menunjukkan bahwa kedua variable di atas memiliki pengaruh dominan terhadap ketebalan lapisan sedangkan arus pelapisan lebih signifikan dalam menentukan laju korosi sebagaimana ditunjukkan oleh nilai p-value 0,05. Selain itu, parity plot mengonfirmasi bahwa model OLS memiliki performa prediksi yang baik dengan R2 sebesar 0,986 untuk model ketebalan lapisan dan R2 sebesar 0,804 untuk model laju korosi. Studi ini menunjukkan bahwa metode OLS dapat digunakan sebagai alat prediktif yang efektif dalam memahami hubungan variabel proses elektroplating. Namun, untuk meningkatkan akurasi prediksi, metode non-linier dapat dipertimbangkan. 
The Mechanical Properties and Microstructure Analysis of Carbon Structural Steel After Quenching in Circulated Water Medium Rosidah, Afira Ainur; Setyowati, Vuri Ayu; Suheni, Suheni; Febrianto, Muhamad
Jurnal IPTEK Vol 26, No 1 (2022)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2022.v26i1.1139

Abstract

The use of carbon structural steel in construction is widely developed. It is important to do research continuously in order to get the optimum mechanical and physical properties of a material. Heat treatment which includes heating and quenching is a process that can be carried out to improve mechanical properties. A fast cooling rate is used to obtain higher strength and hardness. This research studied the effect of quenching using circulated water medium with water flow rate variations in structural steel Q235, Q255, and Q275 to their mechanical properties and microstructure. The heat treatment process was done with hardening at 1150oC, roll milling at austenitizing temperature, then quenching using circulated water medium with water flow rate of 225, 238, 247 m3/h. The tensile and hardness test results showed that water flow rate and carbon content in steel give an effect on strength and hardness. The highest tensile strength and hardness value were achieved by Q275 steel with a flow rate of 247 m3/h, which are 73,49 kgf/mm2 and 298 HVN, respectively. Meanwhile, the microstructures resulted in the presence of the mixture of martensite and pearlite, as well as ferrite in every sample with the increase in the composition of martensite and pearlite in Q275 steel with a flow rate of 247 m3/h.
Co-Authors Afira Ainur Rosidah Ardi Noerpamoengkas Choir, Miftahul Eriek Wahyu Restu Widodo Febrianto, Muhamad Iftika Philo Wardani Maulana, Hasan Syafik Naili Saidatin Samudra, Ilham Prajala Saputro, Agung Bagus Sasongko, Sukendro Broto Suheni Suheni Syamsuri Vietanti, Frizka Wardani, Iftika Philo Zain Lillahulhaq