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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
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.