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Effect of current density on Electroplating Cu-Mn Process of AISI 1020 Steel Corrosion Rate in 3% Corrosive NaCl Medium
Yayat Iman Supriyatna (1), Bening NH Kambuna (2), Ratna Noviyana (3), Ediman Ginting Suka (3), Slamet Sumardi (1), Sudibyo (1)

(1) Research unit for Mineral Technology - Indonesian Institute of Sciences
(2) Metallurgical and Material Departement - University of Sutan ageng Tirtayasa
(3) Phisics Major - Lampung University


Abstract

AISI 1020 steel is widely applied as the main material for construction and piping systems on ships. This research was conducted to investigate the effect of electroplating Cu-Mn current density on the corrosion rate of AISI 1020 steel in a 3% NaCl corrosive medium. Corrosion rate testing was carried out using the weight loss method with immersion of samples in a corrosive NaCl medium for 168 hours and variations in current densities of 35, 45, 55, 65 and 75 mA/cm2. The results showed that the greater current density applied the lower corrosion rate. This is because an increase in electroplating current density will also increase Cu and Mn ions deposited in steel, where deposits of these ions will improve the corrosion resistance of steel. The lowest corrosion rate was obtained at 0,053 mm/y at a current density of 75 mA/cm2. XRD characterization results showed that peaks formed at current densities of 35 mA/cm2 are almost the same as the results of steel characterization after electroplating current density of 75 mA/cm2, but with a lower intensity. The results of the metallurgical microscope analysis show that the formed layer is thicker with increasing electroplating current density.

Keywords: corrosion rate, current density, electroplating, NaCl, Cu-Mn

Topic: Minerals and Complex Materials

Link: https://ifory.id/abstract/YpGMtkanJNrm

Conference: The 7th International Conference on Advanced Materials Science and Technology (ICAMST 2019)

Plain Format | Corresponding Author (Yayat Iman Supriyatna)

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