| 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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Pirling, Thilo
Institut Laue-Langevin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Analysis of Phase-Specific Strain Pole Figures for Duplex Steels under Elasto-Plastic Uniaxial Tension—Experiment vs. EPSC Modellingcitations
- 2023Relationship between microstructure, and residual strain and stress in stainless steels in-situ alloyed by double-wire arc additive manufacturing (D-WAAM) processcitations
- 2022Investigation of microstructure, hardness and residual stresses of wire and arc additive manufactured 6061 aluminium alloycitations
- 2021Triaxial residual stress in Laser Powder Bed Fused 316Lcitations
- 2020Strain monitoring during laser metal deposition of inconel 718 by neutron diffractioncitations
- 2019Residual stress in laser cladded railcitations
- 2019Residual stresses of friction melt bonded aluminum/steel joints determined by neutron diffractioncitations
- 2017Assessment of the effect of residual stresses in elastic-plastic fracture of dissimilar welded componentscitations
- 2017Neutron Diffraction Evaluation of Near Surface Residual Stresses at Welds in 1300 MPa Yield Strength Steelcitations
- 2017Residual stress distribution in friction stir welded ODS steel measured by neutron diffractioncitations
- 2017Quantification of Residual Stresses in Electron Beam Welded Fracture Mechanics Specimens
- 2016Effect of high-pressure rolling followed by laser processing on mechanical properties, microstructure and residual stress distribution in multi-pass welds of 304L stainless steelcitations
- 2015A comparative study of additive manufacturing techniques: Residual stress and microstructural analysis of CLAD and WAAM printed Ti-6Al-4V componentscitations
- 2012Systematic investigation of residual strains associated with WC-Co coatings thermal sprayed onto metal substratescitations
- 2011Can intergranular force transmission be identified in sand? First results of spatially-resolved neutron and x-ray diffractioncitations
Places of action
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article
Residual stress in laser cladded rail
Abstract
To improve the fatigue life of components subject to loads with high surface strain gradients, it is possible to coat them with an alloy of higher durability. The present study focuses on the effect of cladding high value track components, made of a standard rail steel UIC 900A/grade 260, with a layer of a premium martensitic stainless steel to reduce wear and fatigue. The laser cladding process inevitably generates residual stresses in the clad and parent metal, which could be detrimental to the integrity of the component. Therefore, measurements to determine the residual stress state of cladded rail were performed using semi-destructive centre-hole and deep hole drilling and non-destructive neutron diffraction techniques. Subsequently, the effects of cycling loading and wear, representative of typical service loads, on the redistribution of the residual stress field were investigated. It was observed that laser cladding causes a triaxial compressive residual stress field in the clad and near the interface and a tensile stress field in the parent material. The stress field is shown to change when the first cycle of load is applied but reaches a steady state after only 10 cycles: After the 10th cycle there is no evidence that the clad continues accumulating strain which could indicate that there is low risk of ratcheting. Wear effect on residual stress redistribution was found to be local on the surface of the specimen only.