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All Journal Jurnal Rekayasa Material, Manufaktur & Energi ARMATUR : Artikel Teknik Mesin dan Manufaktur Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE)
Masruri, Deden
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Pengaruh Komposisi Cangkang Telur Sebagai Energizer Pada Proses Pack Carburizing Baja AISI 1018 Terhadap Peningkatan Sifat Mekanik Azmy, Ilham; Masruri, Deden; Shalahudin, Andhika Jalu
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 4 No. 2 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i2.3972

Abstract

AISI 1018 steel is classified as low-carbon steel which is widely utilized for mechanical components, construction, and pipes owing to its high strength and ductility. However, this steel has a limitation to less several mechanical properties viz. hardness and wear resistance. In this work, the pack carburizing process by using different composition of activated carbon and eggshell as energizer have been attempted to strengthen mechanical properties of AISI 1018 steel. The AISI 1018 steel specimens were heated in the furnace at 850 oC and holding time 3 hours, which subsequently rapid cooling process by sink into the water. The composition variations of pack carburizing process mainly contain 95% activated carbon - 5% eggshell, 85% activated carbon - 15% eggshell, and 75% activated carbon - 25% eggshell. Afterwards, it has clearly depicted that pack carburized AISI 1018 using 95% activated carbon - 5% eggshell as energizer possess intriguing microstructure transformation which influence to mechanical properties improvement such as high hardness value (394,2 HV) and good wear resistance (0,074 mm3/minute). Therefore, pack carburized AISI 1018 using 95% activated carbon - 5% eggshell as energizer gives a significant development to enhance AISI 1018 mechanical properties for long-life usage.
Airflow Velocity Measurement Of Turbular Test Section Based On Rpm Setting Configuration In Open Circuit Subsonic Wind Tunnel Syifa Fauziah Rahmani, Nanda; Sugianto, Sugianto; Masruri, Deden
Journal of Applied Mechanical Engineering and Renewable Energy Vol 4 No 2: August 2024
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jamere.v4i2.914

Abstract

Speed measurements in the test section based on the RPM setting configuration of the open-type subsonic wind tunnel with a turbular test section to obtain the properties of the airflow in the test section based on the RPM setting configuration in the open-type subsonic wind tunnel. The simulation process is carried out using software Computational Fluid Dynamics (CFD) , ANSYS Fluent. The simulation process is carried out by the method Moving Reference Frame (MRF) that the fluid phenomenon is moved to move the fan in the wind tunnel to obtain airflow properties in the turbular test section, open-type subsonic wind tunnel. In the testing process, airflow velocity measurements were carried out in the turbular test section of the open-type subsonic wind tunnel using an air velocity measuring instrument, namely anemometer and hotwire. The software Computer Aided Design (CAD), Solidworks, serves to create the geometry of the open-type subsonic wind tunnel and has a turbular test section inspired by the Didacta Italia PN21 D open-type subsonic wind tunnel. The properties that occur in the test section based on the configuration of the RPM setting in the open-type subsonic wind tunnel turbular test section are expected to achieve results to obtain the value of the velocity distribution, pressure distribution and turbulence intensity value so that it is useful and supports the operation and testing process to be carried out in an open-type subsonic wind tunnel with a turbular test section.
Pengaruh Proses Pack Carburizing Baja AISI 4340 Terhadap Peningkatan Kekerasan dan Ketahanan Aus Azmy, Ilham; Masruri, Deden; Rahardyanto, Rivaldy; Suyitno, Suyitno
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.11017

Abstract

The AISI 4340 steel is widely used in severe load such as shaft, crankshafts, and connecting rods in automobile and machinery industry which required to capable maintain high mechanical strength and toughness. Since this material is very important for mechanical and engineering usage, the long wear solicitation must be required. However, it requires to high surface hardness to achieve longer lifetime and less damage. To tackle this problem, the research proposes novel experimental method of pack carburizing process on AISI 4340 steel to construct carbon layer on the surface. The process begins by packing AISI 4340 steel along with charcoal and BaCO3catalyst and heating inside the furnace at 900 oC for 4 hours to facilitate carbon diffusion on the surface. Afterwards, the sample was slowly cooled in the furnace and another sample of base AISI 4340 also prepared. The samples were subsequently examined by using spectrometry test, metallographic observation, hardness test, and wear test. The results show that pack carburized AISI 4340 steel possesses intriguing microstructure which pointed by presence of ferrite and high carbide (Fe3C) phases. The microstructure transformation of pack carburized AISI 4340 steel affects to increase high hardness value (325,4 HV) and high wear resistance compared than the base AISI 4340 steel. Thus, the pack carburized AISI 4340 steel has tenacious capability to attain long wear during mechanical and engineering applications.
Co-Authors Ilham Azmy Maryani Pandiangan, Windy Rahardyanto, Rivaldy Shalahudin, Andhika Jalu Sugianto Sugianto Suyitno Suyitno Syifa Fauziah Rahmani, Nanda