| 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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Sun, Yongle
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2022Assessing and mitigating the distortion and stress during electron beam welding of a large shell-flange structurecitations
- 2020Impact of weld restraint on the development of distortion and stress during the electron beam welding of a low-alloy steel subject to solid state phase transformation
- 2020Effects of dilution on the hardness and residual stresses in multipass steel weldmentscitations
- 2019Characterisation and modelling of tempering during multi-pass weldingcitations
- 2019Phase-Field Simulation of Grain Boundary Evolution In Microstructures Containing Second-Phase Particles with Heterogeneous Thermal Propertiescitations
- 2019Measurement and Prediction of Phase Transformation Kinetics in a Nuclear Steel During Rapid Thermal Cyclescitations
- 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
- 2016Predicting an optimal inter-pass temperature to mitigate residual stress and distortion in ferritic steel weldmentscitations
- 2016The variation in elastic modulus throughout the compression of foam materialscitations
Places of action
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article
Effects of dilution on the hardness and residual stresses in multipass steel weldments
Abstract
A thermal-metallurgical-mechanical model was developed to study the effects of dilution in each weld pass for multipass gas tungsten arc and submerged arc welding in low alloy steel (i.e. SA508) plates. Hardness distributions and residual stresses were measured on the transverse sections perpendicular to the welding direction of the manufactured weldments. The predicted hardness and residual stresses were compared with the measurement data and shown to be reasonably accurate. The results showed that dilution can significantly affect both the hardness and the residual stress field in the weld metal. It was found that, for the base and filler materials used, increased dilution led to greater weld-metal hardness and reduced the magnitude of tensile stress or promoted compressive stress in the as-deposited and reheated weld metals. This mechanical behaviour is associated with the tendency for diluted weld metal to experience delayed austenite decomposition, owing to the high hardenability of SA508 steel relative to the filler materials used. Although dilution is irrelevant for the hardness of the base material and its transformation products adjacent to the weld metal, it affected the full-field residual stresses via the equilibrium interaction between the stresses in the base and weld metals.