| 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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Reisgen, Uwe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Reduction of distortion during laser beam welding by applying an in situ alloyed LTT effect and considering influencing factors
- 2024Simulation of wire metal transfer in the cold metal transfer (CMT) variant of gas metal arc welding using the smoothed particle hydrodynamics (SPH) approachcitations
- 2024Influence of laser beam welding in vacuum on the magnetic properties of non-grain oriented electrical steel sheets
- 2024Development of an in situ alloying method for high-performance welding processes to achieve an LTT effect by local modification of the alloy content
- 2024Modelling the Evolution of Phases during Laser Beam Welding of Stainless Steel with Low Transformation Temperature Combining Dilatometry Study and FEMcitations
- 2023Optimization of the weldability and joint strength of Al Mg Si cladded aluminum alloys via RSW: a statistical and metallurgical approach
- 2022Residual Stress Reduction with the LTT Effect in Low Carbon Manganese-Steel through Chemical Composition Manipulation Using Dissimilar Filler Material in Laser Beam Weldingcitations
- 2022Strain Monitoring of a Structural Adhesive Bond by Embedding a Polymer Optical Fibercitations
- 2022Curing Adhesives with Woven Fabrics Made of Polymer Optical Fibre and PET Yarncitations
- 2021Individualized and controlled laser beam pretreatment process for adhesive bonding of fiber-reinforced plastics. II. Automatic laser process control by spectrometrycitations
- 2019Manipulating the melt propagation of short arc gas metal arc welding with diode lasers <1 kW for improvement in flexibility and process robustnesscitations
- 2019Influence of variation of energy per unit length on mechanical-technological properties of ultra-high-strength steel 22MnB5 in the laser beam welding processcitations
- 2017Comparison of submerged arc welding process modification influence on thermal strain by in-situ neutron diffractioncitations
- 2016Tensile stress analyses through digital image correlation of single lap joints of high strength steel and aluminium alloy using adhesive bondingcitations
- 2011Theoretische und experimentelle Untersuchung des spaltungsinduzierten Versagens von TRC Prüfkörpern
- 2008Reducing degradation effects in SOFC stacks manufactured at Forschungszentrum Jülich - Approaches and results
- 2005Overview of the development of solid oxide fuel cells at Forschungszentrum Juelich
- 2004Solid oxide fuel cell development at Forschungszentrum Juelich
Places of action
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article
Residual Stress Reduction with the LTT Effect in Low Carbon Manganese-Steel through Chemical Composition Manipulation Using Dissimilar Filler Material in Laser Beam Welding
Abstract
<jats:p>This paper investigates the manipulation of chemical composition of a laser weld by dissimilar filler material and its effect on residual stress. The aim is to minimize residual stresses in the weld seam. In order to negate residual stresses, dissimilar combinations of low-carbon manganese steel (S235JR) base material with high-alloyed solid filler wires (G19 9 and G25 20), as well as similar combinations with low-alloyed solid filler wire G3Si1 are analyzed. The goal of the paper is to show that the so-called low-transformation-temperature effect can be used to induce residual compressive stresses in a weld without the use of specially manufactured filler wires. Chemical compositions are generated within a laser-beam-welding process by means of dilution, proving that the concept of in situ alloying is usable in order to affect the martensite formation on a weld. Dilatometry measurements show that a varying Cr and Ni content in a weld reduces the phase-transformation temperature and increases dilatation. EBSD analysis indicates that a fully martensitic weld with a negligible amount of retained austenite is created while the base material preserves its ferritic-pearlitic microstructure. Residual stress measurements with the hole-drilling method demonstrate a reduction in longitudinal tensile residual stresses, whereby the magnitude of the induced residual compressive stresses depend on the Ms temperature. As a result of this research, it was proven that a reduction in tensile residual stress by means of targeted alloying with conventional materials in low-carbon manganese steel is possible. Under the experimental conditions, residual stress in the weld seam could be reduced to 0 MPa. In some cases, even compressive residual stress in the weld could be achieved.</jats:p>