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All Journal IKRA-ITH ABDIMAS MACHINERY: Jurnal Teknologi Terapan Serambi Engineering International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Fenoria Putri
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Serambi Engineering

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Analisa Pengaruh Heat Treatment Terhadap Nilai Kekerasan Expeller Arm Digester di PT. Hindoli Mill Sungai Lilin Emilia Mianti; Fenoria Putri; Soegeng Witjahjo
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study investigated the effect of varying heat treatment on the hardness of expeller arm digesters. Wear is a surface failure that can alter the surface profile and affect the performance of components. This is due to the release of particles from the surface of the material and the low hardness of the Expeller Arm Digester which is made from low carbon steel with a carbon content of 0.189%. One method of increasing its hardness is through heat treatment in the form of a hardening process. The study investigated hardening using different holding times (25, 30 and 35 minutes) and cooling media (water, brine and oil). Vickers hardness tests were then carried out on both the original expeller arm digester samples and the treated samples.  The best results were obtained with a 35 minute holding time and water cooling, giving a hardness of 548.12 VHN and an influence percentage of 99.45%. The lowest hardness of 276.76 VHN and 0.7% influence percentage was observed with a holding time of 35 minutes and oil cooling. The microstructure affects the hardness of the steel, the steel with a higher martensite content will cause an increase in the hardness of the steel.
Co-Authors bin Zulkipli, Muhammad Asyrad Cindi Ramayanti Emilia Mianti HB, Indra Hendradinata , Hendradinata Hendradinata, Hendradinata Jihan Syalsabila Karmin Kartika Rachma Sari Kiagus M. Rizky Khadafi Ogi Meita Utami Pandini, Jasmine Safe’i, Safe’i Siproni, Siproni Soegeng Witjahjo Sofiah