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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
S. Sujita
University of Mataram
Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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The effect cooling media in pack carburizing quenching on the corrosion resistance of ASTM A36 steel S. Sujita; P. Padmiatmi; A. Zainuri; R. Sutanto
Dinamika Teknik Mesin Vol 15, No 2 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i2.1099

Abstract

Rotary plow on hand tractor functions as a tool to plow the land efficiently in agricultural mechanization. This tool is made of ASTM A36 steel which functions to cut, chop, and turn the soil, thus improving the soil structure and preparing the land for planting. The disadvantages of ASTM A36 steel are low  impact toughness and corrosion resistance. In this study, ASTM A36 steel was pack carburizing quenching, with variations in cooling media in the form of water, coconut oil , and SAE 40 oil. The results of the studythe use of coconut oil as a cooling medium in the pack carburizing quenching process of ASTM A36 steel cause lower corrosion rates, slower cooling rates so that energy and impact toughness are higher compared to water as a cooling media So that coconut oil as a cooling media can be applied to the pack carburizing quenching rotary plow process to increase corrosion resistance.
Effect of solid carburizing process using natural catalysts on the wear resistance ofAISI 1018 steel S. Sujita; P. Pandiatmi; S. Suteja; I.P. Lokantara
Dinamika Teknik Mesin Vol 16, No 1 (2026): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v16i1.1265

Abstract

Low carbon steel AISI 1018 is extensively used in agricultural and mechanical components owing to its good formability and weld ability; however, its low surface hardness restricts its wear performance. Solid carburizing is a well-established surface hardening technique to address this limitation, while the utilization of natural catalysts derived from local biomass presents a sustainable and cost-effective alternative to conventional chemical activators. This study examines the effect of solid carburizing using natural catalysts broiler chicken bone powder, laying hen bone powder, and duck bone powder on the wear resistance of AISI 1018 steel. Carburizing treatments were performed using teak charcoal as the carbon source, mixed with the natural catalysts, at 900 °C for 1, 1.5, 2, and 3 h, followed by rapid cooling to induce surface hardening. The treated specimens were evaluated through hardness measurements and dry sliding wear tests, complemented by microstructural analyses to assess surface morphology and effective case depth. The results reveal a pronounced increase in surface hardness and a significant improvement in wear resistance compared with untreated steel. These improvements are associated with enhanced carbon diffusion and the formation of a martensitic carburized layer after quenching. Overall, the findings demonstrate that solid carburizing assisted by natural catalysts is an effective approach to improving the wear resistance of AISI 1018 steel, offering a sustainable and economically viable surface modification route for low carbon steel employed in agricultural and engineering applications.
Co-Authors A. Zainuri I.P. Lokantara P. Padmiatmi P. Pandiatmi R. Sutanto S. Suteja