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All Journal MEKTEK Foristek Jurnal MEKANIKAL Rekayasa Mesin Jurnal IPTEK Journal of Mechanical Engineering Science and Technology INTEK: Jurnal Penelitian
Ramang Magga
Fakultas Teknik, Jurusan Teknik Mesin, Universitas Tadulako
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGARUH MEDIA PERENDAMAN NaCl TERHADAP LAJU KOROSI PADA BAJA ST 42 DALAM EKSTRAK INHIBITOR KULIT PISANG KEPOK Ramza, Ramza; Magga, Ramang; Pirade, Yulius S.
Foristek Vol. 12 No. 2 (2022): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v13i2.152

Abstract

Effect of NaCl Immersion Media on Corrosion Rate on ST 42 Steel in Kepok Banana Peel Inhibitor Extraction. This study aims to determine the corrosion rate of ST 42 steel using an inhibitor of kepok banana peel extraction with various NaCl immersion media. Sample immersion time is 168, 336, 504 hours. The method used to calculate the corrosion rate is to measure the weight loss. The sample of this research was carried out in the Mechanical Engineering laboratory, Faculty of Engineering and the Pharmacy laboratory, Faculty of Mathematics and Natural Sciences, Tadulako University. The results obtained in the variation of NaCl 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, inhibitor kepok banana peel extraction 300 ppm, an increase in corrosion rate with increasing NaCl variation with the same amount of extraction inhibitor, this is because the percentage of NaCl variation greatly affects the corrosion rate.
EXPLORING BIDARA LEAVES AS A SUSTAINABLE CORROSION INHIBITOR FOR AISI 1045 STEEL IN 3,5% NACL SOLUTION Magga, Ramang; Tence, Tence; Zuchry, Muhammad; Marsan, Kennedy; Kali, Agustinus
Jurnal Rekayasa Mesin Vol. 16 No. 3 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

This research investigated the efficacy of bidara leaf extract (BLE) as a natural corrosion inhibitor for AISI 1045 steel in a 3.5% NaCl solution. Different concentrations of BLE (0%, 0.05%, 0.10%, and 0.15%) were examined by the immersion method, potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS) to assess the corrosion rate and inhibition efficiency. The findings indicated that the minimal corrosion rate was seen at 0.15% BLE concentration. PDP study demonstrated a notable reduction in current density (icorr) as BLE concentration increased, signifying its efficacy in corrosion inhibition. The test findings indicated an elevation in charge transfer resistance, corroborating the establishment of a stable protective layer on the steel surface. SEM-EDX research further confirmed the existence of negligible surface damage and the adsorption of organic inhibitor layers. The active chemicals in BLE facilitated the passivation process, diminishing oxidation-reduction processes and decelerating the corrosion rate. The findings affirm that bidara leaf extract is a viable eco-friendly alternative as a natural inhibitor to mitigate corrosion and offer sustainable protection for low-carbon steel in NaCl.
Co-Authors Agustinus Kali Astak, Muh Anjas Bakri Bakri Denny Widhiyanuriyawan I Gusti Bagus Wiksuana Kennedy Marsan Khairil Anwar Muhammad Zuchry M Mustofa Mustofa Mustofa, Pirade, Yulius S. Ramza, Ramza Rustan Hatib Suparman, Sidik Teguh Tence, Tence Wardoyo Wardoyo Yusnaini Arifin