Searched for: subject:"steel"
(1 - 20 of 149)

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Sainis, Salil (author), Farahani, H. (author), Gamsjäger, Ernst (author), van der Zwaag, S. (author)

Direct microscopic observation of the isothermal bainite evolution in terms of nucleation events, the location of the nuclei, as well as their growth is very valuable for the refinement of models predicting the kinetics of bainite transformation. To this aim, the microstructural evolution in a Fe-0.2C-1.5Mn-2.0Cr alloy during isothermal...

journal article 2018
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Fang, H. (author), van der Zwaag, S. (author), van Dijk, N.H. (author)

The magnetic configuration of a ferromagnetic system with mono-disperse and poly-disperse distribution of magnetic particles with inter-particle interactions has been computed. The analysis is general in nature and applies to all systems containing magnetically interacting particles in a non-magnetic matrix, but has been applied to steel...

journal article 2018
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Mao, W. (author)
Galvanized advanced high strength steels (AHSS) will be the most competitive structural material for automotive applications in the next decade. Oxidation of AHSS during the recrystalization annealing process in a continuous galvanizing line to a large extent influences the quality of zinc coating on the final galvanized steel product. For...
doctoral thesis 2018
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Wang, Sihao (author), He, Jun (author), Liu, Yuqing (author), Li, Chuanxi (author), Xin, H. (author)

Composite girder with corrugated steel web is one of the promising concrete-steel hybrid structures with superior properties and cost effectiveness widely applied in highway and railway bridges. The connection between concrete slabs and corrugated steel web is an important part of such composite structure. In order to improve pouring quality...

journal article 2018
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Akyel, A. (author), Kolstein, M.H. (author), Bijlaard, F.S.K. (author)
Modern steel manufacturing techniques make it possible to produce steel with the nominal yield strength up to 1300 MPa for structural purposes. However, the application of very high strength steels is still limited in the civil engineering structures due to lack of knowledge about the effects of the manufacturing process and experimental results...
journal article 2018
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Bojack, A. (author)
This thesis studies in-situ the phase transformations during heat treatment of two advanced steels: a supermartensitic stainless steels (SMSS), on which the main focus of this work is, and Fe-C-Mn-Si steels. A magnetic technique, based on the analysis of saturation magnetization, is utilized as the primary analysing tool. The scientific aim of...
doctoral thesis 2018
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Versteylen, C.D. (author), Szymański, N. K. (author), Sluiter, M.H.F. (author), van Dijk, N.H. (author)

In recently discovered self healing creep steels, open-volume creep cavities are filled by the precipitation of supersaturated solute. These creep cavities form on the grain boundaries oriented perpendicular to the applied stress. The presence of a free surface triggers a flux of solute from the matrix, over the grain boundaries towards the...

journal article 2018
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Mirzakhanzadeh, Z. (author), Kosari, A. (author), Moayed, M. H. (author), Naderi, R. (author), Taheri, P. (author), Mol, J.M.C. (author)

This work investigates the synergetic effect of zinc aluminum polyphosphate (ZAPP) and 2-mercaptobenzimidazole (MBI) on the corrosion protection of mild steel coated with a solvent-borne epoxy-polyamide layer. The magnitude and trend of electrochemical impedance spectroscopy data over 70-d immersion in 3.5 wt.% NaCl solution indicate superior...

journal article 2018
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Agarwal, G. (author), Amirthalingam, M. (author), Moon, S. C. (author), Dippenaar, R. J. (author), Richardson, I.M. (author), Hermans, M.J.M. (author)

Sufficient liquid feeding under constrained solidification conditions like, those experienced in welding and casting, is vital to avoid solidification cracking. We present the results of unique in-situ experimental observations of liquid feeding in a solidifying steel melt pool. Liquid feeding was observed in the inter-cellular regions during...

journal article 2018
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Mao, W. (author), Ma, Yao (author), Sloof, W.G. (author)

A multi-element and multi-phase internal oxidation model that couples thermodynamics with kinetics is developed to predict the internal oxidation behaviour of Fe–Mn–Cr steels as a function of annealing time and oxygen partial pressure. To validate the simulation results, selected Fe–Mn–Cr steels were annealed at 950 °C for 1–16 h in a gas...

journal article 2018
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Gollapalli, Veerababu (author), Rao, M.B.Venkata (author), Karamched, P.S. (author), Borra, C.R. (author), Roy, G.G. (author), Srirangam, Prakash (author)

A study has been carried out to understand the modification of alumina inclusions in Al-killed high sulphur steel with calcium treatment. For calcium treatment to be effective, a general practice is to desulphurise the steel to prevent the formation of solid CaS inclusions that are harmful to steel quality and final properties. To avoid this...

journal article 2018
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Chen, Zhipei (author), Koleva, D.A. (author), van Breugel, K. (author)
Metallic corrosion can cause substantial damage at various levels and in almost all types of infrastructure. For metallic corrosion to occur, a certain external environment and the presence of corrodents are the prerequisites. Stray current-induced corrosion, however, is a rather underestimated issue in the field of corrosion and civil...
journal article 2017
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Pavlovic, M. (author), Veljkovic, M. (author)

The Eurocode 3 rules for the high-strength steel (HSS: fy > 460 MPa) limit the analysis of beams to elastic global analysis and grades up to S700. In order to fully exploit the potential to design lightweight and sustainable steel structures, plastic analysis and the use of higher steel grades with fy > 700 MPa are...

journal article 2017
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Teixeira De Freitas, S. (author), Kolstein, M.H. (author), Bijlaard, F.S.K. (author)

Full-scale fatigue tests were performed on two retrofitted orthotropic bridge decks (OBDs). The retrofitting systems consist of adding a second steel plate on the top of the existing deck. The aim is to reduce the stresses at the fatigue-sensitive details and therefore extend the fatigue life of the OBD by stiffening the existing deck plate....

journal article 2017
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Liu, Quantao (author), Li, Bin (author), Schlangen, H.E.J.G. (author), Sun, Yihan (author), Wu, Shaopeng (author)

In this paper, steel slag/steel fiber composite asphalt mixture were prepared. The effects of the addition of steel slag and/or steel fibers on the mechanical, thermal, induction heating and healing properties of asphalt mixture were investigated. The results showed that adding steel slag and/or steel fibers improves the water stability,...

journal article 2017
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Akyel, A. (author)
For cyclically loaded structures, fatigue design becomes one of the important design criteria. The state of art shows that with modification of the conventional structural design methodology, the use of very high strength steels may have a positive effect on fatigue strength of welded connections. However, there is little known about the repair...
doctoral thesis 2017
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Angst, Ueli M. (author), Geiker, Mette R. (author), Michel, Alexander (author), Gehlen, Christoph (author), Wong, Hong (author), Isgor, O. Burkan (author), Elsener, Bernhard (author), Hansson, Carolyn M. (author), François, Raoul (author), Hornbostel, Karla (author), Polder, R.B. (author), Alonso, Maria Cruz (author), Sanchez, Mercedes (author), Correia, Maria João (author), Criado, Maria (author), Sagüés, A. (author), Buenfeld, Nick (author)

Although the steel–concrete interface (SCI) is widely recognized to influence the durability of reinforced concrete, a systematic overview and detailed documentation of the various aspects of the SCI are lacking. In this paper, we compiled a comprehensive list of possible local characteristics at the SCI and reviewed available information...

journal article 2017
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Teixeira De Freitas, S. (author), Banea, M.D. (author), Budhe, S. (author), de Barros, S. (author)

An experimental study has been carried out to assess the adhesion quality of composite-to-metal bonded joints under salt spray ageing conditions. The tests were performed according to the ASTM standard of floating roller peel tests with a new specimen layup. The layup and geometry of the specimen was defined in order to have the Carbon Fiber...

journal article 2017
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Qiang, X. (author), Wu, N. (author), Jiang, X. (author), Bijlaard, F.S.K. (author), Kolstein, M.H. (author)

Purpose – This study aims to reveal more information and understanding on performance and failure mechanisms of high strength steel endplate connections after fire. Design/methodology/approach – An experimental and numerical study on seven endplate connections after cooling down from fire temperature of 550°C has...

journal article 2017
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Hidalgo Garcia, J. (author), Findley, K.O. (author), Santofimia Navarro, M.J. (author)

The mechanical and thermal stability of austenite in multiphase advanced high strength steels are influenced by the surrounding microstructure. The mechanisms underlying and the relations between thermal and mechanical stability are still dubious due to the difficulty of isolating other factors influencing austenite stability. In this work,...

journal article 2017
Searched for: subject:"steel"
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