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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Prosiding Seminar Nasional Teknoka Dinamisia: Jurnal Pengabdian Kepada Masyarakat SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Multitek Indonesia : Jurnal Ilmiah KOMPUTEK Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Arifin, Rizal
Faculty Of Engineering, Universitas Muhammadiyah Ponorogo, Ponorogo 63471
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Journal : KOMPUTEK

 1 
STUDI PENGARUH TEMPERATUR TERHADAP KEKUATAN TARIK NiTi NANOPILLAR MENGGUNAKAN SIMULASI DINAMIKA MOLEKULER Septien Tri Cahyono; Rizal Arifin; Munaji Munaji
KOMPUTEK Vol 6, No 1 (2022): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v6i1.1138

Abstract

NiTi alloy is a highly functional alloy of Ni (nickel) metal and Ti (titanium) metal used for engineering. This NiTi alloy has good biocompatibility properties against human body tissues so that currently it is widely used for medical devices. This study aims to determine the effect of temperature on the tensile strength of NiTi Nanopillars and to investigate the behavior of the atoms making up NiTi nanopillars due to tensile loading. From the results obtained, the authors found the greatest value of the modulus of elasticity for the NiTi Nanopillar alloy with a temperature of 100 K, which is 80.4321 GPa. Meanwhile, the lowest modulus of elasticity is the NiTi Nanopillar alloy with a temperature of 600 K, which is 65.5847 GPa. So it can be concluded that the greater the effect of temperature on the NiTi Nanopillar alloy, the smaller the modulus of elasticity will be. This thesis also discusses the stress-strain and mechanical properties of NiTi Nanopillar alloys during the simulation process. 
PENGARUH KUAT ARUS TIG WELDING PADA MATERIAL SUS 304 TERHADAP KEKUATAN TARIK DAN STRUKTUR MIKRO Wahyu Aditya Rohman; Rizal Arifin; Yoyok Winardi
KOMPUTEK Vol 5, No 2 (2021): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v5i2.822

Abstract

GTAW welding (gas tungsten arc welding) or commonly called TIG (tungsten inert gas) welding is welding using a flame arc produced by a fixed electrode made of tungsten. One thing that needs to be considered in welding (especially in TIG welding) is the effect of welding amperage on the mechanical properties or strength of the welded joint. PeThe tests carried out in this study were tensile tests and micro tests. Tensile tests were carried out with the aim of knowing the tensile strength of the test specimens. And the micro test is carried out aiming to see the microstructure that occurs in the weld area (HAZ). Data analysis was carried out by looking at the relationship of tensile stress, yield stress, and strain that occurred in the test specimen based on variations or parameters used during welding. Based on the analysis of the mechanical properties and microstructure of thematerial stainless steel sus 304 musing TIG welding (Tungsten Inert Gas)with a current variation of 80 A, 100 A and 120 A showed a difference that caused a comparison of the difference in the tensile strength. Welding using a current of 80 A has the highest average stress of 316.6 kN/mm2, welding using a current of 100 A has a tensile strength of 378.6 kN/mm2. While welding using a current of 120 A has the highest tensile strength of 458.3 kN/mm2. The results of this test indicate that the analysis of the mechanical properties and microstructure of TIG welding (Tungsten Inert Gas) shows a significant effect of tensile strength at a current of 120 A, so it has the highest tensile strength with an average value of 458.3 kN/mm2 
Co-Authors Agung Purniawan Aldo Asmoro Anisa Sri Janatin Asrining Wulandari Bayu Aji Saputra Cobantoro, Adi Fajaryanto Deviardia Putri Nurmayasari Dyah Mustikasari Edy Kurniawan Erika Diyah Cahyani Evi Zulfa Aidha Putri Fadelan Fadelan Fahrudin Kurniawan Ghulam Asrofi Buntoro Ida Widaningrum, Ida Indah Puji Astuti Kuntang Winangun Lia Setiyani M. Malyad Muhammad Arif Khaidir Muhammad Malyadi Munaji Munaji Nanda Artia Ningrum Nina Alfiana Septien Tri Cahyono Sumarwan Syaiful Mahfud Abdulloh Wahyu Aditya Rohman Wawan Kusnawan Wawan Trisnadi Putra Yeossy Sufitri Yoyok Winardi Zulkham Umar Rosyidin