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The use of a saturated long carbon chain sodium monocarboxylate for the corrosion inhibition of lead objects in atmospheric conditions and in acetic acid corrosive solutions Ghent University

. Elbeshary Aldesouki Ahmed Mohammed, Mieke Adriaens
In this paper, a saturated long carbon chain sodium monocarboxylate containing 18 carbons-labeled- NaC(18-)was used for the formation of a lead carboxylate coating to inhibit the corrosion of lead in atmospheric conditions and in acetic acid corrosive solutions. The effect of stirring of the coating solution during the coating process on the inhibition efficiency was studied. The coating was characterized by scanning electron microscopy and ...

Towards understanding and prediction of atmospheric corrosion of an Fe/Cu corrosion sensor via machine learning Vrije Universiteit Brussel

Zibo Pei, Dawei Zhang, Yuanjie Zhi, Tao Yang, Lulu Jin, Dongmei Fu, Xuequn Cheng, Herman Terryn, Johannes M. C. Mol, Xiaogang Li, et al.

The atmospheric corrosion of carbon steel was monitored by a Fe/Cu type galvanic corrosion sensor for 34 days. Using a random forest (RF)-based machine learning approach, the impacts of relative humidity, temperature and rainfall were identified to be higher than those of airborne particles, sulfur dioxide, nitrogen dioxide, carbon monoxide and ozone on the initial atmospheric corrosion. The RF model demonstrated higher accuracy than ...

Review on modelling of corrosion under droplet electrolyte for predicting atmospheric corrosion rate Vrije Universiteit Brussel

Bangalore Gangadharacharya Koushik, Nils Van Den Steen, Mesfin Haile Mamme, Yves Van Ingelgem, Herman Terryn

Atmospheric corrosion of metals is the most common type of corrosion which has a significant impact on the environment and operational safety in various situations of everyday life. Some of the common examples can be observed in land, water and air transportation systems, electronic circuit boards, urban and offshore infrastructures. The dew drops formed on metal surface due to condensation of atmospheric moisture facilitates corrosion as an ...

Exploring the potential of transfer learning in extrapolating accelerated corrosion test data for long-term atmospheric corrosion forecasting Vrije Universiteit Brussel

Vincent Vangrunderbeek, Leonardo Bertolucci Coelho, Dawei Zhang, Yiran Li, Yves Van Ingelgem, Herman Terryn

This study utilizes transfer learning (TL) to enhance long-term atmospheric corrosion predictions. Using a Fe/Cu galvanic-type sensor, we gathered data in a controlled SAE J2334 salt spray setting and transferred this to an uncontrolled outdoor environment. Among TL methods tested, freezing the initial layer and fine-tuning others at a lower rate was most effective. The approach excelled at forecasting outdoor corrosion behaviour using a ...

Monitoring atmospheric corrosion under multi-droplet conditions by electrical resistance sensor measurement Vrije Universiteit Brussel

Keer Zhang, Ehsan Rahimi, Nils Van Den Steen, Herman Terryn, Arjan Mol, Yaiza Gonzalez-Garcia

This paper presents a novel approach to investigate atmospheric corrosion kinetics of carbon steel under multi-droplet conditions. A homemade climate chamber has been developed to accurately control and monitor environmental conditions, including temperature (T) and relative humidity (RH), during exposure. Carbon steel corrosion kinetics are monitored with a custom-designed Electrical Resistance (ER) sensor pair. Savitzky-Golay (S-G) based ...

Atmospheric corrosion of iron under a single droplet Vrije Universiteit Brussel

Ehsan Rahimi, Keer Zhang, Ali Kosari, Nils Van Den Steen, Axel Homborg, Herman Terryn, Arjan Mol, Yaiza Gonzalez-Garcia

Utilizing a dedicated micro-sized three-electrode cell, this study systematically investigates early-stage electrochemical properties and corrosion behavior of pure iron under single droplets. Various volumes and NaCl concentrations were considered during the evaporation-driven shape and concentration evolution of single droplets. The measurements disclosed that reducing the droplet size from 5 µL to 1.5 µL at 0.01 M NaCl concentration, ...

Investigation of the importance of heat transfer during thin electrolyte formation in atmospheric corrosion using a novel experimental approach Vrije Universiteit Brussel

Bangalore Gangadharacharya Koushik, Nils Van Den Steen, Herman Terryn, Yves Van Ingelgem

During atmospheric corrosion of metals, the evolution of thin-film electrolyte thickness is the primary factor that determines corrosion rate. Understanding the evolution of the electrolyte thickness as a function of the key environmental parameters is yet to be achieved. Therefore, in the present article, a novel methodology has been developed to conduct experiments under regulated environment to measure the evolution of the film thickness ...