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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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Smith, Mike C.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Modelling the Effect of Residual Stresses on Damage Accumulation Using a Coupled Crystal Plasticity Phase Field Fracture Approach
- 2023Bridging Length Scales Efficiently Through Surrogate Modellingcitations
- 2022Measuring the effect of post-weld heat treatment on residual stress relaxation in electron beam welds made of low alloy pressure vessel steel using the contour method
- 2021Magneto-hydrodynamics of multi-phase flows in heterogeneous systems with large property gradientscitations
- 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
- 2019Phase-Field Simulation of Grain Boundary Evolution In Microstructures Containing Second-Phase Particles with Heterogeneous Thermal Propertiescitations
- 2019A Semi-Analytical Solution for the Transient Temperature Field Generated by a Volumetric Heat Source Developed for the Simulation of Friction Stir Weldingcitations
- 2019Measurement and Prediction of Phase Transformation Kinetics in a Nuclear Steel During Rapid Thermal Cyclescitations
- 2019Material Characterization on the Nickel-Based Alloy 600/82 NeT-TG6 Benchmark Weldmentscitations
- 2019Effects of dilution on alloy content and microstructure in multi-pass steel weldscitations
- 2018Numerical simulation of grain boundary carbides evolution in 316H stainless steelcitations
- 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
- 2017The NeT Task Group 4 residual stress measurement and analysis round robin on a three-pass slot-welded plate specimencitations
- 2016Residual stresses in thick-section electron beam welds in RPV steelscitations
- 2015Rousselier Parameter Calibration for Esshete Weld Metalcitations
- 2014Finite Element Simulation of a Circumferential Through-Thickness Crack in a Cylindercitations
- 2014Understanding the Impact of High-Magnitude Repair-Weld Residual Stresses on Ductile Crack Initiation and Growth: The STYLE Mock-Up 2 Large Scale Testcitations
Places of action
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article
An Evaluation of Multipass Narrow Gap Laser Welding as a Candidate Process for the Manufacture of Nuclear Pressure Vessels
Abstract
Nuclear pressure vessels are currently fabricated using arc welding processes. Recently, considerable effort has been directed at the development of electron beam welding as an alternative fabrication technique owing to the substantial productivity gains it would offer. However, little attention has been directed at laser-based techniques. In this work we evaluate the potential for applying multipass narrow-gap laser welding (NGLW) to the fabrication of nuclear pressure vessels, based on the characterization of a 30 mm thick weld in SA508 steel. Although still a multipass process, the number of passes is reduced in comparison to an arc weld of the same thickness, and the deposition of successive passes provides a degree of tempering to previously deposited weld metal in a way that the electron beam welding process does not. Principal engineering challenges for the implementation of multipass NGLW include the achievement of appropriate joint fit-up, and the shielding of a molten pool at the base of a deep and narrow weld groove.