| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vasileiou, Anastasia N.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Modelling the Effect of Residual Stresses on Damage Accumulation Using a Coupled Crystal Plasticity Phase Field Fracture Approach
- 2023Investigating the suitability of using a single heat transfer coefficient in metal casting simulation: An inverse approach
- 2020Electron beam weld modelling of ferritic steel: effect of prior-austenite grain size on transformation kineticscitations
- 2020Effects of dilution on the hardness and residual stresses in multipass steel weldmentscitations
- 2019Residual stresses in arc and electron-beam welds in 130 mm thick SA508 steelcitations
- 2019Residual stresses in arc and electron-beam welds in 130 mm thick SA508 steelcitations
- 2019Characterisation and modelling of tempering during multi-pass weldingcitations
- 2019Measurement and Prediction of Phase Transformation Kinetics in a Nuclear Steel During Rapid Thermal Cyclescitations
- 2019Effects of dilution on alloy content and microstructure in multi-pass steel weldscitations
- 2018Prediction of grain boundary evolution in an titanium alloy substrate using a novel phase field model coupled with a semi-analytical thermal solution
- 2018Residual Stress Distributions in Arc, Laser and Electron-Beam Welds in 30 mm Thick SA508 Steelcitations
- 2017An Evaluation of Multipass Narrow Gap Laser Welding as a Candidate Process for the Manufacture of Nuclear Pressure Vesselscitations
- 2017The impact of transformation plasticity on the electron beam welding of thick-section ferritic steel componentscitations
- 2016Residual stress distributions in laser and gas metal-arc welded high-strength steel platescitations
- 2016Residual stresses in thick-section electron beam welds in RPV steelscitations
- 2011Numerical simulation of sand casting of an aluminium part
Places of action
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article
Effects of dilution on alloy content and microstructure in multi-pass steel welds
Abstract
Dilution represents the contribution from base material to weld metal and its important effects are complicated for multi-pass steel welds. In this study, the dilution was determined for each bead in a 3-pass gas tungsten arc (GTA) weld and a corresponding submerged arc (SA) weld. Different filler materials were used with each process, but both cases involved the deposition of filler wires into grooves in low-alloy (SA508) ferritic steel plates. Martensite and bainite were observed in the heat-affected zone (HAZ) of the base material in both cases. Acicular ferrite dominated the SA weld metal, while this phase was mixed with martensite and bainite in the GTA weld metal. Thermal-metallurgical modelling was performed and it correctly predicted the microstructures in the base-material HAZ for both the GTA and SA weldments. It also captured the GTA weld metal microstructure, when transformations from austenite to acicular ferrite and bainite were treated as being equivalent. However, this approximation led to overestimation of the martensite volume fraction in the SA weld metal. The modelling revealed that increases in dilution favour martensite formation but suppress bainite/ferrite transformations, owing to the melting of greater quantities of the base material, which has a relatively high hardenability.