Searched for: subject:"corrosion"
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Stambaugh, K.A. (author)
Ships must perform their missions with a high degree of reliability to maximize availability through their service life. The ultimate safety of the hull structure is time-dependent with degradation caused by the operational environment. Achieving the fore mentioned reliability and mission availability requirements are complicated because ships...
doctoral thesis 2020
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Koenig, Andreas (author), Mahmoud, Hitham (author), Baehre, Oliver (author), Dehn, Frank (author)
This paper investigates the development of the alkalinity and its impact on carbon steel reinforcement embedded in alkali-activated fly ashes (AAFA) and alkali-activated fly ashes with ten percentage mass (wt%) of blast furnace slag (AAFAS)-based materials (geopolymer–GP). The pH analysis of eluates indicates a remarkable decrease of...
journal article 2020
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Meeusen, M. (author)
The corrosion protection of metallic substrates with corrosion inhibitors, either in solution or dispersed in a coating formulation, has been the focus of many research topics for many decades and has intensified in recent years even more with industry moving away from hexavalent chromium (Cr(VI))- based corrosion inhibitors. While mainly...
doctoral thesis 2020
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Rajabinezhad, Mojtaba (author), Bahrami, Abbas (author), Mousavinia, Mohammad (author), Seyedi, Seyed Jalil (author), Taheri, P. (author)
This paper investigates the root cause of a failure in gas-turbine blades, made of Nimonic-105 nickel-based superalloy. The failure was reported in two blades in the second stage of a turbine-compressor of a gas turbine in the hot section. Two failed blades were broken from the root and from the airfoil. The failure took place after 20 k h of...
journal article 2020
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Nakhaie, D. (author), Kosari, A. (author), Mol, J.M.C. (author), Asselin, E. (author)
The soil corrosion of widely applied galvanized steel structures, such as power transmission towers, must be considered to prevent harm to their structural integrity and to mitigate the high costs associated with early failure. A full two-level factorial design was used to evaluate the relative significance of various influencing factors on the...
journal article 2020
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Kosari, A. (author), Zandbergen, H.W. (author), Tichelaar, F.D. (author), Visser, P. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Identifying corrosion initiation events in metals and alloys demands techniques that can provide temporal and spatial resolution simultaneously. Transmission electron microscopy (TEM) enables one to obtain microstructural and chemical descriptors of materials at atomic/nanoscopic level and has been used in corrosion studies of many metal...
review 2020
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Wani, F.M. (author), Dong, J. (author), Polinder, H. (author)
Recently, tidal stream turbines have become a preferable mode of harvesting tidal energy. The main issue for low utilization of tidal energy is the high levelized cost of energy (LCoE) from tidal stream turbines. A major reason for this is the high operation and maintenance costs for submerged installations. A possible way of minimizing the LCoE...
book chapter 2020
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Meeusen, M. (author), Zardet, L. (author), Homborg, A.M. (author), Lekka, M. (author), Andreatta, F (author), Fedrizzi, L. (author), Boelen, B (author), Mol, J.M.C. (author), Terryn, H.A. (author)
In previous work, the importance of taking the time-domain into account when studying corrosion inhibitor-containing electrochemical systems was highlighted. In this work, odd random phase electrochemical impedance spectroscopy (ORP-EIS) is applied as the electrochemical tool to study the time-effect by the evaluation of the non...
journal article 2020
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Fockaert, L.I. (author), Würger, T. (author), Unbehau, R. (author), Boelen, B. (author), Meißner, R. H. (author), Lamaka, S. V. (author), Zheludkevich, M. L. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Integrated attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) – Electrochemical impedance spectroscopy (EIS) measurements were used to simultaneously follow chemisorption mechanisms of organic inhibitors as well as their corrosion inhibition efficiency towards magnesium based substrates. Four carboxylic compounds...
journal article 2020
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Verkens, Donovan (author), Revilla, Reynier I. (author), Kosari, A. (author), Günyüz, Mert (author), Işıksaçan, Cemil (author), Mol, J.M.C. (author), De Graeve, Iris (author), Terryn, H.A. (author)
Aluminum alloy (AA) 3003 is widely used as fin and tube material in heat exchangers. In these heat exchangers, the tube and fin material are brazed together by means of an AA4xxx alloy. In this study, the effect of a simulated brazing step on the microstructure and corrosion behavior of a twin roll casted (TRC) AA3003 was studied. In particular,...
journal article 2020
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Pei, Zibo (author), Zhang, D. (author), Zhi, Yuanjie (author), Yang, Tao (author), Jin, Lulu (author), Fu, Dongmei (author), Cheng, Xuequn (author), Terryn, H.A. (author), Mol, J.M.C. (author), Li, Xiaogang (author)
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...
journal article 2020
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Rossi, E. (author), Polder, R.B. (author), Copuroglu, Oguzhan (author), Nijland, Timo (author), Šavija, B. (author)
Although reinforcement corrosion is a well-known issue, which are the locations of the steel/concrete interface most sensitive to pitting corrosion is still an unclear issue. In this study, X-ray computed tomography is used to characterize eight 20-years-old reinforced concrete cores naturally deteriorated due to chloride-induced corrosion....
journal article 2020
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Roubos, A.A. (author), Allaix, Diego L. (author), Schweckendiek, T. (author), Steenbergen, Raphael D.J.M. (author), Jonkman, Sebastiaan N. (author)
The assessment of service-proven quay walls subject to corrosion-induced degradation is inherently a time-dependent reliability problem. Two major challenges are the modelling of corrosion and taking into account the decrease of epistemic uncertainty throughout the quay wall's service life. The main objective of this study is to examine the...
journal article 2020
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Visser, P. (author)
For decades, scientists and engineers are searching for a safe and environmentally friendly alternative for the toxic chromate corrosion inhibitors in active protective coatings for the protection of aerospace aluminium alloys. In this search many different compounds have been investigated as leachable corrosion inhibitor, but no alternative...
doctoral thesis 2019
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Denissen, P.J. (author), Garcia, Santiago J. (author)
An in-situ hyphenated optical and electrochemical method for the real-time study of corrosion and corrosion inhibition processes is presented and validated for the case of AA2024-T3 exposed to two NaCl concentrations and six inhibitors. During testing, 5 μm resolution optical images of the exposed surface are obtained in parallel to...
journal article 2019
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Qu, Zuopeng (author), Wang, Lei (author), Tang, H. (author), Ye, H. (author), Li, Meicheng (author)
In this paper, four composite coatings of nano-SnS/polyvinylbutyral (PVB), nano-MoS<sub>2</sub>/PVB, nano-SnS-Zn/PVB, and nano-MoS<sub>2</sub>-Zn/PVB were prepared, and their anti-corrosion mechanism was analyzed by experimental and theoretical calculations. The results of the electrochemical experiments show that the effect of nano-MoS<sub>2...
journal article 2019
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Li, Y. (author), Lietaert, K. (author), Li, W. (author), Zhang, X.Y. (author), Leeflang, M.A. (author), Zhou, J. (author), Zadpoor, A.A. (author)
The corrosion fatigue behavior of additively manufactured topologically ordered porous iron based on diamond unit cells was studied for the first time to understand its response to cyclic loading in a simulated physiological environment. The material exhibited high fatigue resistance with fatigue strengths being 70% and 65% of yield stress in...
journal article 2019
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Khouzani, Mahdi Kiani (author), Bahrami, Abbas (author), Hosseini-Abari, Afrouzossadat (author), Khandouzi, Meysam (author), Taheri, P. (author)
This paper investigates a severe microbiologically influenced failure in the elbows of a buried amine pipeline in a petrochemical plant. Pipelines can experience di_erent corrosion mechanisms, including microbiologically influenced corrosion (MIC). MIC, a form of biodeterioration initiated by microorganisms, can have a devastating impact on...
journal article 2019
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Mahmoud, H. (author)
The electrochemical response of carbon steel in chloride-free or chloride-containing 0.1 M and 0.9 M NaOH, in the presence of 0.016 wt.% NMCS, is the subject of this work. The NMCS exhibited a negative (in 0.1 M NaOH) and positive (in 0.9 M NaOH) zeta-potential. This determined altered steel electrochemical response, improved overall,...
journal article 2019
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Laird, J. S. (author), Visser, P. (author), Ranade, S. (author), Hughes, A.E. (author), Terryn, H.A. (author), Mol, J.M.C. (author)
Studies of Li depletion in sections of a Li <sub>2</sub> CO <sub>3</sub> -primer comprising a polyurethane binder, MgO, TiO <sub>2</sub> , BaSO <sub>4</sub> in addition to Li <sub>2</sub> CO <sub>3,</sub> were performed using a combination of particle induced γ-ray and X-ray emission spectroscopies along with SEM/EDS analysis. A mixture of...
journal article 2019
Searched for: subject:"corrosion"
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