| 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
Characterisation and modelling of tempering during multi-pass welding
Abstract
Weld-induced in-process tempering of martensite/bainite was studied through characterisation and modelling. Three-pass gas tungsten arc (GTA) and submerged arc (SA) welds were produced in grooved plates made from a low-alloy ferritic (SA508) steel. A thermal-metallurgical-mechanical model was developed to simulate multi-pass welding while accounting for tempering kinetics. Significant tempering of martensite, in the heat affected zone that was produced by the first pass, occurred during the second and third passes, resulting in a coarsened lath structure, increased carbide precipitation and reduced hardness. The tempering effect was more extensive in the SA weldments than in the GTA weldments, since the tempering mainly occurred in a martensite-dominant region without re-austenitisation for the former while in a partially re-austenitised region for the latter. The predictions for tempered microstructures were consistent with microscopic observations, and the predicted micro-hardness agreed well with measurements when tempering was considered in modelling. The peaks in predicted tensile and compressive residual stresses were reduced by considering tempering effect, since the local yield strength reduced as a consequence of the tempering, thereby limiting the stresses that could be sustained.