| 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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Pavier, Mj
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2021Compressive fatigue characteristics of octet-truss lattices in different orientationscitations
- 2021In-situ Measurements of Stress During Thermal Shock in Clad Pressure Vessel Steel Using Synchrotron X-ray Diffractioncitations
- 2019Residual stress in laser cladded railcitations
- 2019Fatigue of thin periodic triangular lattice platescitations
- 2019Thermal and stress analyses of a novel coated steam dual pipe system for use in advanced ultra-supercritical power plantcitations
- 2019Fracture of three-dimensional lattices manufactured by selective laser meltingcitations
- 2019Investigation of a novel design for steam transfer pipes in high temperature power plant
- 2019Reducing steam transport pipe temperatures in power plantscitations
- 2019Redistribution of residual stress by thermal shock in reactor pressure vessel steel clad with nickel alloycitations
- 2018Development of Residual Stresses During Laser Claddingcitations
- 2017Measurement of assembly stress in composite structures using the deep-hole drilling techniquecitations
- 2016On stability of a new side cut destructive method for measuring non-uniform residual stress in thin platescitations
- 2015Advances in the deep hole drilling technique for the residual stress measurement in composite laminates
- 2015Measurement of in-plane residual stresses in an AS4/8552 composite laminate using the deep-hole drilling method
- 2014In situ neutron diffraction measurement of residual stress relaxation in a welded steel pipe during heat treatmentcitations
- 2013Residual stress measurements in a ferritic steel/In625 superalloy dissimilar metal weldment using neutron diffraction and deep-hole drillingcitations
- 2011A micromechanical fracture criterion accounting for in-plane and out-of-plane constraintcitations
- 2010A comparison between measured and modeled residual stresses in a circumferentially Butt-welded P91 steel pipecitations
- 2010Influence of constraint on the micromechanics of fracture of AL2024
- 2009A new procedure to measure near yield residual stresses using the deep hole drilling techniquecitations
- 20091Constraint influence on the micromechanics of the Al2024 fracture behaviour
- 2009Spatial variation of residual stresses in a welded pipe for high temperature applicationscitations
- 2008Edge impact to composite laminatescitations
- 2007Prediction of fatigue crack growth rates using crack closure finite element analysiscitations
- 2006Three dimensional finite element prediction of crack closure and fatigue crack growth rate for a corner crackcitations
- 2006Impact damage to thick carbon fibre reinforced plastic composite laminatescitations
- 2005Measurement of residual stress in thick section composite laminates using the deep-hole methodcitations
- 2005Impact of thick CFRP laminates: the effect of impact velocity
- 2002Crack-tip constraint in mode II deformationcitations
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.