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All Journal Bulletin of Electrical Engineering and Informatics Jurnal Teknologi Pendidikan JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian UntukMu NegeRI Jurnal Penelitian Pendidikan IPA (JPPIPA) Paedagoria : Jurnal Kajian, Penelitian dan Pengembangan Kependidikan SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Informatika UNIKA Santo Thomas JCRS (Journal of Community Research and Service) AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Mantik Community Development Journal: Jurnal Pengabdian Masyarakat MEANS (Media Informasi Analisa dan Sistem) Jurnal Pendidikan Vokasional Teknik Elektronika (JVoTE) Jurnal Abdimas Ilmiah Citra Bakti (JAICB) JTEIN: Jurnal Teknik Elektro Indonesia JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Jurnal Teknik Informatika Unika Santo Thomas (JTIUST) JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Electron: Jurnal Ilmiah Teknik Elektro Tekmulogi: Jurnal Pengabdian Masyarakat Jurnal Penelitian Pendidikan Indonesia Jurnal Polimesin
Bakti Dwi Waluyo
Universitas Negeri Medan
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Journal : Jurnal Polimesin

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Enhancement of surface hardness and roughness of HQ 805 steel using diamond-like carbon coating deposited by PVD Pakpahan, Binsar Maruli Tua; Yaqin, Rizqi Ilmal; Waluyo, Bakti Dwi; Zulfikram, Zulfikram; Mendoza, Muhammad Dominique
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6166

Abstract

Diamond-Like Carbon (DLC) coatings are well-regarded for their high hardness, low friction coefficient, and excellent wear resistance, making them suitable for enhancing surface properties in demanding industrial applications. This study aims to analyze the effect of DLC coating on HQ 805 steel, focusing on improvements in surface hardness and surface roughness. HQ 805 steel, which is known for its mechanical durability, was coated using the Physical Vapor Deposition (PVD) method to achieve a uniform and adherent thin film. Hardness was evaluated using the Vickers microhardness test, while surface roughness was measured with a profilometer. Results showed a significant increase in surface hardness, with the coated samples achieving up to 798 VHN. It represented a 25–30% increase compared to the uncoated steel at 355 VHN. Surface roughness exhibited only a slight increase (5–7% Ra), indicating the thin layer and uniform deposition achieved with DLC without adversely affecting the surface finish. These results confirm that PVD-applied DLC coatings can effectively enhance the mechanical surface performance of HQ 805 steel without compromising surface quality. The optimal coating condition was found at 400°C for 4 hours. This research shows the potential application of DLC-coated HQ 805 steel in high-wear industrial environments extending component service life and improving operational efficiency.
Co-Authors Aditiya Pratama Daryana Agus Junaidi Agus Junaidi Ali Akbar Lubis Amirhud Dalimunthe Andreas Pratama Partogu Hutabarat Angga Koswara Malau Annisa, Selly Arwadi Sinuraya Aulia Rahman S, Muhammad Azizi Lubis, Reza Arbi Baharuddin . Baharuddin Baharuddin Br Tarigan, Sintya Verina Denny Haryanto Sinaga Deskristina Siregar Dita Febiyan Pratiwi Dodi Suryanto, Eka Doni, Rahma Eka Dodi Suryanto Erita Astrid Farihah, Farihah Halimul Bahri Haryanto Sinaga, Denny Hesti Fibriasari Hesti Fibriasari Hesti Fibriasari Hutahaean, Harvei Desmon Ichwanul Muslim Karo Karo Immanuel, Michael Fritz Indra Cahyadi, Catra Januariyansah, Sapitri Kardo Simanjuntak Lisa Melvi Ginting Manullang, Jongga Marpaung, Salmian Sinurasti Mega Silfia Dewy, Mega Silfia Mendoza, Muhammad Dominique Muchsin Harahap Muhammad Ashari Muhammad Dani Solihin Muhammad Isnaini Muhammad Sulaiman Mulyana, Dadang Nelson Sinaga Nora Idiawati Pakpahan, Binsar Maruli Tua Pangaribuan, Wanapri Pulungan, Ahmad Shafwan S Putri, Tansa Trisna Astono Rahmadany, Savitri Rahman S, Muhammad Aulia Rahman Sembiring, Muhammad Aulia Rais, Muhammad Amin Ramadhani, Syahara Ayu Rambey, Joni Syafrin Ressy Dwitias Sari Restu Restu Rivaldo Effendi Rizqi ilmal yaqin, Rizqi ilmal Rosma Siregar S, Muhammad Aulia Rahman Salman Bintang Salman, Budi Saragi, Dian Putra Sembiring, Muhammad Aulia Rahman Simanjuntak, Felix Hizkia Simatupang, Tora Valentina Sitompul, Betty Sitompul, Ely Esa Yes Sriadhi . Sukarman Purba Suryanto, Eko Dodi Suwarno Suwarno Syahputra, Ricky Andi Tampubolon, Ricky Nelson Yoakim Simamora Yosefa Hutajulu, Olnes Zulfikram, Zulfikram