Next Article in Journal
A Survey of Electromagnetic Techniques Applied to Cultural Heritage Conservation
Previous Article in Journal
Technology–Economy–Policy: Biochar in the Low-Carbon Energy Transition—A Review
Previous Article in Special Issue
Electrochemical Performance of Ti Gr. 2 as Electrodes in Contact with Saline Suspension of Clays during the Electroflotation Process
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Applied Sciences
Volume 15
Issue 11
10.3390/app15115883
applsci-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Effect of the Concentration of a Nitrite-Based Inhibitor and Chloride Ions on the Corrosion Behavior of FCD-500 in a Simulated Marine Engine Cooling Water System

by
Woo-Seck Jeon
1 and
Kwang-Hu Jung
2,*
1
Graduate School, Department of Marine Engineering, Mokpo National Maritime University, Mokpo 58628, Republic of Korea
2
Division of Cadet Training, Mokpo National Maritime University, Mokpo 58628, Republic of Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2025, 15(11), 5883; https://doi.org/10.3390/app15115883
Submission received: 19 April 2025 / Revised: 16 May 2025 / Accepted: 22 May 2025 / Published: 23 May 2025
(This article belongs to the Special Issue Advances in Metal Materials: Electrochemical Characterization and Applications)
Versions Notes

Abstract

This study aims to evaluate the corrosion behavior of ductile cast iron (FCD-500) under simulated marine engine operating conditions and to determine the optimal corrosion inhibitor conditions under chloride contamination. Experiments were conducted at 50 °C and 80 °C, with different Cl− concentrations (0–500 ppm) and sodium nitrite (NaNO2)-based inhibitor concentrations (0; 9000; 15,000; 17,000 ppm). Immersion and electrochemical tests were performed to analyze the microstructural corrosion characteristics and inhibitor efficiency. The results indicated that as the Cl− concentration increased, proportionally higher levels of inhibitor were required to maintain surface stability. The maximum inhibition efficiency, approximately 97.3%, was achieved with an inhibitor concentration of 17,000 ppm, at a Cl− concentration of 100 ppm.
Keywords: inhibitor; chloride; corrosion; FCD-500; cooling water inhibitor; chloride; corrosion; FCD-500; cooling water

Share and Cite

MDPI and ACS Style

Jeon, W.-S.; Jung, K.-H. Effect of the Concentration of a Nitrite-Based Inhibitor and Chloride Ions on the Corrosion Behavior of FCD-500 in a Simulated Marine Engine Cooling Water System. Appl. Sci. 2025, 15, 5883. https://doi.org/10.3390/app15115883

AMA Style

Jeon W-S, Jung K-H. Effect of the Concentration of a Nitrite-Based Inhibitor and Chloride Ions on the Corrosion Behavior of FCD-500 in a Simulated Marine Engine Cooling Water System. Applied Sciences. 2025; 15(11):5883. https://doi.org/10.3390/app15115883

Chicago/Turabian Style

Jeon, Woo-Seck, and Kwang-Hu Jung. 2025. "Effect of the Concentration of a Nitrite-Based Inhibitor and Chloride Ions on the Corrosion Behavior of FCD-500 in a Simulated Marine Engine Cooling Water System" Applied Sciences 15, no. 11: 5883. https://doi.org/10.3390/app15115883

APA Style

Jeon, W.-S., & Jung, K.-H. (2025). Effect of the Concentration of a Nitrite-Based Inhibitor and Chloride Ions on the Corrosion Behavior of FCD-500 in a Simulated Marine Engine Cooling Water System. Applied Sciences, 15(11), 5883. https://doi.org/10.3390/app15115883

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop