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Duijster, A. (author), Volker, A. (author), van den Berg, F. (author), Celada-Casero, C. (author)The applicability of laser ultrasonics for the determination of grain size and phase composition in steels under different temperatures was investigated. This was done by obtaining the velocity and attenuation of propagating ultrasonic waves in a simulated steel medium. Samples of ferrite and austenite with varying microstructures were modelled...article 2023
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Bertolo, V. (author), Jiang, Q. (author), Terol Sanchez, M. (author), Riemslag, T. (author), Walters, C.L. (author), Sietsma, J. (author), Popovich, V. (author)High strength steels are widely used for structural applications, where a combination of excellent strength and ductile-to-brittle transition (DBT) properties are required. However, such a combination of high strength and toughness can be deteriorated in the heat affected zone (HAZ) after welding. This work aims to develop a relationship between...article 2023
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Gentile, G. (author), Bonalumi, D. (author), Pieterse, J.A.Z. (author), Sebastiani, F. (author), Lucking, L.E. (author), Manzolini, G. (author)The iron and steel industry accounts for 6 % of the global CO2 emissions and it is one of the main hard-to-abate sectors that must be un-locked to reach climate neutrality in the coming decades. The objective of this work is to assess the economics of the FReSMe (From Residual Steel gases to Methanol) process for reducing the carbon footprint of...article 2022
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Zhang, X. (author), Noel-Hermes, N. (author), Ferrari, G. (author), Hoogeland, M.G. (author)Corrosion of mooring chains is regarded as one of main threats to the offshore mooring systems. Localized corrosion is even more dangerous than uniform corrosion because it may not show significant mass loss but it can cause stress concentration and initiate cracks under force, leading to accelerated degradation of mooring chains. Localized...article 2022
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Obers, S.F.P.M. (author), Overal, J.J. (author), Wong, W.J. (author), Walters, C.L. (author)Application of high-strength steels in the maritime and offshore industry is currently limited by rules governing the ratio of the yield to tensile strength (the Y/T ratio). To better understand the physical basis for these rules, the nature and extent of the plastic stress/strain field in the vicinity of a stress concentration (a circular hole)...article 2022
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Wong, W.J. (author), Walters, C.L. (author)High-strength steel beams are known to have less plastic rotation capacity than beams with lower yield strengths. This has been related to the decreased strain-hardening ability of high-strength steels, and various rules and standards for steel structures stipulate maximum limits on the allowable yield-to-tensile strength ( y/ u)ratio, which...conference paper 2022
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Maljaars, J. (author), Leonetti, D. (author), Hashemi, B. (author), Snijder, H.H.B. (author)This paper presents a probabilistic framework to derive the safety factors for fatigue of steel and composite steel concrete road bridges. Engineering models are used for the design and the safety factor is derived in such a way that the design meets the target reliability set by international Eurocode and ISO standards, estimated using measured...article 2022
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Maljaars, J. (author), Rozsas, A. (author), Walters, C.L. (author), Slot, H.M. (author)The failure assessment line (FAL) describes the interaction between plastic failure and fracture of flawed steel components subjected to tension or bending. This paper quantifies the model uncertainty of the FAL as provided in the internationally used British Standard BS 7910:2019 by comparing the assessment with the actual failure load of 82...article 2022
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- Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author) article 2022
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Feleki, B.T. (author), Bouwer, R.K.M. (author), Zardetto, V. (author), Wienk, M.M. (author), Janssen, R.A.J. (author)An efficient substrate-configuration p-i-n metal-halide perovskite solar cell (PSC) is fabricated on a polymer-coated steel substrate. The optimized cell employs a Ti bottom electrode coated with a thin indium tin oxide (ITO) interlayer covered with a self-assembled [2-(9H-carbazol-9-yl)ethyl]phosphonic acid monolayer as a hole-selective contact...article 2022
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- Hengeveld, S.T. (author), Vervuurt, A.H.J.M. (author), Maljaars, J. (author) conference paper 2021
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Sabbadini, A. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Current ultrasonic clamp-on flow meters consist of a pair of single-element transducers which are carefully positioned before use. This positioning process consists of manually finding the distance between the transducer elements, along the pipe axis, for which maximum SNR is achieved. This distance depends on the sound speed, thickness and...article 2021
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Rossi, E. (author), Zhang, H. (author), Garcia, S.J. (author), Bijleveld, J. (author), Nijland, T.G. (author), Copuroglu, O. (author), Polder, R.B. (author), Savija, B. (author)The elastic modulus of corrosion product (Ecp) has been reported with significant variations in the literature. This study aims to investigate the Ecp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation, electron microscopy and...article 2021
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Saric, M. (author), Dijkstra, J.W. (author), van Delft, Y.C. (author)The potential of advanced polymer or hybrid polymer membranes to reduce CO2 emissions in steel production was evaluated. For this, a conceptual process design and assessment was performed for a process that is a combination of carbon recycling and electrification of the steel making process. The results indicate a CO2 avoidance of 9%. CO2...article 2021
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Yang, F. (author), Meerman, H. (author), Faaij, A. (author)A harmonized method was developed to assess CO2 mitigation performance and avoidance costs for different steel production routes, including blast furnace with blast oxygen furnace (BOF), direct reduced iron (DRI) production with electric arc furnace (EAF), and Hisarna with BOF. Mass and energy balances were used to evaluate each route's cradle...article 2021
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Jiang, Q. (author), Bertolo, V.M. (author), Popovich, V.A. (author), Sietsma, J. (author), Walters, C.L. (author)Macroscale cleavage fracture toughness of high strength steels is strongly related to the fracture of hard microstructural inclusions. Therefore, an accu rate determination of the local stress on these inclu sions based on the matrix stress is necessary for the statistical modelling of macroscale cleavage fracture. This paper presents analytical...article 2021
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Bertolo, V.M. (author), Jiang, Q. (author), Walters, C.L. (author), Pupovich, V.A. (author)One of the main challenges in applying thick-section high-strength steels (HSS) at arctic condition in offshore and maritime industry is to maintain a sufficient level of toughness to prevent brittle failure. An aspect that requires special attention is the through-thickness microstructural variation which may result in different local...conference paper 2020
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Manzolini, G. (author), Giuffrida, A. (author), Cobden, P.D. (author), van Dijk, H.A.J. (author), Ruggeri, F. (author), Consonni, F. (author)Mitigation of CO2 emissions in the industrial sector is one of the main climate challenges for the coming decades. This work, carried out within the STEPWISE H2020 project, performs a preliminary techno-economic assessment of the Sorption Enhanced Water Gas Shift (SEWGS) technology when integrated into the iron and steel plant to mitigate CO2...article 2020
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Leonetti, D. (author), Maljaars, J. (author), Pasquarelli, G. (author), Brando, G. (author)Hot-riveted connections have been widely used in the past for metallic bridges, of which a large part is still in service, making relevant the assessment of their fatigue life. Previous studies have shown that the fatigue behavior of hot-riveted connections depends on many factors; among these, the residual tensile force in the rivets that...article 2020
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Atli-Veltin, B. (author), Coppejans, O.J. (author), Hoogeland, M. (author), van Bergen, J.W. (author)Increasing resistance against impact, either from other ships, floating objects or icebergs, will make shipping safer. Lean Duplex, which is in the stainless steel family, has high strength, and corrosion resistance. Lean Duplex is investigated focusing on its crash resistance in raking scenarios as part of an ongoing project. Material...conference paper 2020