Pages
- 1
- 2
- document
-
Cornet, A.J. (author), Homborg, A.M. (author), Ravi Anusuyadevi, P. (author), 't Hoen-Velterop, L. (author), Mol, J.M.C. (author)Despite extensive research, eliminating hexavalent chromium-based inhibitors from aerospace coatings remains challenging due to a lack of understanding of coating degradation during aircraft service. This study addresses the issue by investigating the protective mechanisms and aging processes of chromate-containing coatings on aircraft...journal article 2024
- document
-
Angst, Ueli M. (author), Rossi, Emanuele (author), Boschmann Käthler, Carolina (author), Mannes, David (author), Trtik, Pavel (author), Elsener, Bernhard (author), Zhou, Z. (author), Strobl, Markus (author)The steel–concrete interface (SCI) is known to play a major role in corrosion of steel in concrete, but a fundamental understanding is still lacking. One reason is that concrete’s opacity complicates the study of internal processes. Here, we report on the application of bimodal X-ray and neutron microtomography as in-situ imaging techniques...journal article 2024
- document
-
Qin, Guojin (author), Zhang, Zhenwei (author), Hou, Xiangqin (author), Lu, Hongfang (author), Huang, Y. (author), Wang, Yihuan (author)In this work, a 3D finite element (FE) based model was developed to assess the condition of an underground hydrogen transmission pipeline containing a corrosion defect under combined internal pressure and soil movement-induced axial compression. The use of mechanical properties of X100 pipeline steel under different hydrogen charging time...journal article 2023
- document
-
Huisman, Luc Hans (author), Ackermann, Regula (author), Claes, Liesbeth (author), van Eijck, L. (author), de Groot, Tessa (author), Joosten, Ineke (author), Kemmers, Fleur (author), Kerkhoven, Nils (author), Ngan-Tillard, D.J.M. (author)We studied the corrosion of Roman copper alloy coins that experienced alternations or progressive changes in their burial environment. We used coins that were still embedded in soil or in a concretion selectedfrom three professional excataved sites - Berlicum and Krommenie in the Netherlands and Kempraten in Switserland. mCT scanning and neutron...journal article 2023
- document
-
Liu, M. (author), Zhu, Jia-Ning (author), Popovich, V. (author), Borisov, E. (author), Mol, J.M.C. (author), Gonzalez Garcia, Y. (author)Electrochemical tests and surface analysis measurements were performed to study the corrosion behavior in a 0.9 wt.% NaCl solution at 37 °C of three NiTi shape memory alloys fabricated by laser-powder bed fusion (L-PBF). The passive film characteristics and corrosion resistance of L-PBF NiTi showed different features as a function of their...journal article 2023
- document
-
Okonkwo, Bright O. (author), Jeong, Chaewon (author), Lee, Hyeon Bae (author), Jang, Changheui (author), Rahimi, E. (author), Davoodi, Ali (author)In this study, we developed and optimized a trivalent chromium coating electrodeposited on 304L stainless steel (SS) from a Cr-trivalent bath. The results reveal that the Cr coatings at all bath temperatures except for 80 °C showed clusters of polyhedral grains, however, the grain sizes decreased with an increase in bath temperature. Also,...journal article 2023
- document
-
Huang, Y. (author), Qin, Guojin (author), Yang, M. (author)RBI, referring to a risk-based approach to inspection planning, is an established pipeline integrity management method. Both corrosion and dents are the primary threats to pipeline integrity. However, they are often treated separately in RBI without considering their interactions. This coupling may lead to a synergic effect on integrity...journal article 2023
- document
-
Van Steen, C. (author), Van Beirendonck, T. (author), Vrijdaghs, R. (author), Hendriks, M.A.N. (author), Verstrynge, E. (author)Bond deterioration is one of the major consequences of reinforcement corrosion in reinforced concrete (RC) structures. In this paper, a two-phased numerical modelling approach is presented that aims to determine the constitutive behaviour (bond–slip) at the reinforcement-concrete interface at a certain corrosion level. The novelty of the...journal article 2023
- document
-
Alfaiate, J. (author), Sluys, Lambertus J. (author), Costa, A. (author)Corrosion in reinforced concrete is an important feature which can lead to increased deformation and cracking, as well as to premature failure. In the present work, macro-mechanical modelling of corrosion is performed, namely the degradation of bond–slip between concrete and steel. A mixed-mode damage model is adopted, in which the...journal article 2023
- document
-
Bastidas-Arteaga, E. (author), Rianna, G. (author), Gervasio, H. (author), Nogal Macho, M. (author)The built environment is already facing severe consequences related to climate change. Considering the durability of structures, the increase of carbon-dioxide (CO<sub>2</sub>) concentration and changes on temperature and relative humidity may accelerate carbonation-induced corrosion, thus affecting the service life of reinforced concrete...journal article 2022
- document
-
Mehdizade, M. (author), Eivani, A.R. (author), Tabatabaei, F. (author), Jafarian, H. R. (author), Zhou, J. (author)In the present research, a composite with a magnesium alloy (WE43) as the matrix and Akermanite as the bioactive and reinforcing agent was fabricated by friction stir processing (FSP), resulting in a microstructure with uniformly distributed fine grains, second-phase particles and micro-sized Akermanite particles. The effect of an addition of...journal article 2022
- document
-
Chen, Zhipei (author), Gao, Liang (author), Koleva, D.A. (author)By different testing methods (electrochemical techniques, potential shift monitoring, and Environmental Scanning Electron Microscope), this research evaluates the stray current corrosion of steel rebar in different layouts. The more significant corrosion state is observed when the steel bar is parallel to stray current flow, compared to the...journal article 2022
- document
-
Pan, Tanbo (author), Zheng, Yonglai (author), Zhou, Yujue (author), Liu, Yongcheng (author), Yu, Kunlong (author), Zhou, Y. (author)This paper presents the results of an experimental study on the flexural behavior of carbon fibre reinforced polymer (CFRP) anchorage system strengthened reinforced concrete (RC) beams under the coupled effects of corrosion damage and sustained loading. The test beams were subjected to combined accelerated corrosion in 5% NaCl solution and...journal article 2022
- document
-
Cai, Jie (author), Jiang, X. (author), Yang, Yazhou (author), Lodewijks, Gabriel (author), Wang, Minchang (author)A corrosion defect is recognized as one of the most severe phenomena for high-pressure pipelines, especially those served for a long time. Finite-element method and empirical formulas are thereby used for the strength prediction of such pipes with corrosion. However, it is time-consuming for finite-element method and there is a limited...journal article 2022
- document
-
Fayezioghani, A. (author), Dekker, R. (author), Sluys, Lambertus J. (author)Corrosion is a phenomenon observed in structural components in corrosive environments such as pipelines, bridges, aircrafts, turbines, etc. The computational model of corrosion should enjoy two features: a) accurately considering the electrochemistry of corrosion and b) properly dealing with the moving interface between solid and electrolyte....journal article 2022
- document
-
Eivani, A.R. (author), Mehdizade, M. (author), Chabok, S. (author), Zhou, J. (author)Magnesium alloys have many unique properties, mostly benefitting from the low density of magnesium. However, they are not competitive, when compared with other lightweight materials, such as aluminum alloys, particularly in ductility and corrosion resistance. There is a strong need to improve the mechanical properties and corrosion resistance...journal article 2021
- document
-
Visser, P. (author), Ranade, S. (author), Laird, J. S. (author), Glenn, A. M. (author), Hughes, A. E. (author), Terryn, H.A. (author), Mol, J.M.C. (author)Depletion depths of inorganic components from a scribe edge in a polyurethane primer containing Li<sub>2</sub>CO<sub>3</sub>, MgO, BaSO<sub>4</sub> and TiO<sub>2</sub> beneath a topcoat, were determined using a range of techniques including SEM/EDS and proton induced X-ray and γ-ray emission spectroscopies. SEM of sections cut using an ion...journal article 2021
- document
-
da Silva Rodrigues, Joel (author), Marasca Antonini, Leonardo (author), da Cunha Bastos, António Alexandre (author), Zhou, J. (author), de Fraga Malfatti, Célia (author)The rapid bio-corrosion of magnesium-based alloys, the formation of hydrogen gas and, consequently, the premature loss of biomechanical functions hinder their applications as biodegradable implant materials. The corrosion becomes even accelerated, when fretting wear occurs at implant junctions, as a result of repeated disruptions of the...journal article 2021
- document
-
Chen, Zhipei (author), Koleva, D.A. (author), Schlangen, E. (author)The focus of this work is to present test results on the bond of steel-mortar interface undergoing stray current. The bond strength, derived by pull-out tests, is correlated to the electrochemical response of the steel rebar and the properties of the mortar bulk matrix. The effects of curing regimes (in terms of duration of curing) and...journal article 2021
- document
-
Chen, Zhipei (author), Koleva, D.A. (author)Different concrete structures (viaducts, bridges, or tunnels) in the neighborhoods of railways may be subject to the stray current leaking from the rails. In these cases, the reinforcing rebars embedded in concrete act as conductors, “pick up” the stray current, and can corrode. For simulating the stray current-induced corrosion of metals, most...journal article 2021
Pages
- 1
- 2