International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

The Effect of Heat Treatment on the Corrosion Rate of Medium Carbon Steel in Seawater from the North Coast of Java

Susilo Adi WidyantoMechanical Engineering Department, Diponegoro University, Semarang, IndonesiaAgus SuprihantoMechanical Engineering Department, Diponegoro University, Semarang, IndonesiaM Ainus SolikhinMechanical Engineering Department, Diponegoro University, Semarang, Indonesia

Vol 9 No 11 (2025): Volume 9, Issue 11, November 2025 | Pages: 275-279

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 18-11-2025

doi Logo doi.org/10.47001/IRJIET/2025.911035

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Abstract

This study investigates the effect of various heat treatment processes on the corrosion rate of medium carbon steel AISI 1045 when exposed to a seawater environment. The research aims to understand how different microstructural changes caused by heat treatment influence corrosion resistance. Five types of specimens were prepared: non-heat-treated, annealed, normalized, quenched, and tempered. The corrosion test was conducted using a CorrTest CS300 Potentiostat with seawater as the corrosive medium, and the test duration was 15 minutes for each specimen. The results show that the heat treatment process significantly affects the corrosion behavior of AISI 1045 steel. The annealed specimen exhibited the lowest corrosion rate (0.013 mmpy), while the untreated specimen had the highest (0.069 mmpy). The improved resistance of the annealed sample is attributed to its homogeneous ferrite-pearlite structure and reduced internal stress. In contrast, the quenched specimen showed poor corrosion resistance due to martensitic formation and residual stress. Overall, annealing was found to provide the most effective improvement in corrosion resistance for AISI 1045 steel in seawater environments.

Keywords

AISI 1045 steel, heat treatment, corrosion rate, seawater


Citation of this Article

Susilo Adi Widyanto, Agus Suprihanto, & M Ainus Solikhin. (2025). The Effect of Heat Treatment on the Corrosion Rate of Medium Carbon Steel in Seawater from the North Coast of Java. International Research Journal of Innovations in Engineering and Technology - IRJIET, 9(11), 275-279. Article DOI https://doi.org/10.47001/IRJIET/2025.911035

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