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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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Flewitt, Peter E. J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2024Creep Cavitation Imaging and Analysis in 9%Cr-1%Mo P91 Steels
- 2024A correlative approach to evaluating the links between local microstructural parameters and creep initiated cavitiescitations
- 2024Effect of grain boundary misorientation and carbide precipitation on damage initiationcitations
- 2024Creep cavitation evolution in polycrystalline copper under conditions of stress relaxationcitations
- 2023A novel approach for evaluating creep damage and cavitation in copper bicrystals subject to constant loadcitations
- 2022Stress Corrosion Cracking in Stainless Steelscitations
- 2021The Effects of Fusion Reactor Thermal Transients on the Microstructure of Eurofer-97 Steelcitations
- 2021Comparing Techniques for Quantification of Creep Cavities
- 2021The role of grain boundary ferrite evolution and thermal aging on creep cavitation of type 316H austenitic stainless steelcitations
- 2020Comparison of measured and modelled residual stresses in a welded P91 steel pipe undergoing post weld heat treatmentcitations
- 2020The role of grain boundary orientation and secondary phases in creep cavity nucleation of a 316h boiler headercitations
- 2019The role of replicated service atmosphere on deformation and fracture behaviour of carburised AISI type 316H steelcitations
- 2019Thermal and stress analyses of a novel coated steam dual pipe system for use in advanced ultra-supercritical power plantcitations
- 2019Investigation of a novel design for steam transfer pipes in high temperature power plant
- 2019Reducing steam transport pipe temperatures in power plantscitations
- 2017Creep deformation and stress relaxation of a martensitic P92 steel at 650 °Ccitations
- 2016Influence of nominal composition variation on phase evolution and creep life of Type 316H austenitic stainless steel components:21st European Conference on Fracture, ECF21, 20-24 June 2016, Catania, Italycitations
- 2016On the evaluation of the Bauschinger effect in an austenitic stainless steel - The role of multi-scale residual stressescitations
- 2016On the evaluation of the Bauschinger effect in an austenitic stainless steel—the role of multi-scale residual stressescitations
- 2016Role of long term ageing on the creep life of type 316H austenitic stainless steel bifurcation weldmentscitations
- 2015The role of ferrite in Type 316H austenitic stainless steels on the susceptibility to creep cavitationcitations
- 2014Small-Scale Approaches to Evaluate the Mechanical Properties of Quasi-Brittle Reactor Core Graphitecitations
- 2014In situ neutron diffraction measurement of residual stress relaxation in a welded steel pipe during heat treatmentcitations
- 2014Growth of abnormal planar faceted grains in nanocrystalline nickel containing impurity sulphurcitations
- 2013Residual stress measurements in a ferritic steel/In625 superalloy dissimilar metal weldment using neutron diffraction and deep-hole drillingcitations
- 2013The role of beam dispersion in Raman and photo-stimulated luminescence piezo-spectroscopy of yttria-stabilized zirconia in multi-layered coatingscitations
- 2013Effect of Substrate Curvature on Residual Stresses and Failure Modes of an Air Plasma Sprayed Thermal Barrier Coating Systemcitations
- 2012Calibration of Raman Spectroscopy in the Stress Measurement of Air-Plasma-Sprayed Yttria-Stabilized Zirconiacitations
- 2011An improved method to identify grain boundary creep cavitation in 316H austenitic stainless steel
- 2010A comparison between measured and modeled residual stresses in a circumferentially Butt-welded P91 steel pipecitations
- 2009Spatial variation of residual stresses in a welded pipe for high temperature applicationscitations
- 2005A strategy for accommodating residual stresses in the assessment of repair weldments based upon measurement of near surface stresses
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article
A strategy for accommodating residual stresses in the assessment of repair weldments based upon measurement of near surface stresses
Abstract
On many occasions repairs are undertaken to ferritic steel weldments on plant either during construction or to remove service induced defects. These repaired weldments are subsequently put into service with or without a post-weld heat treatment. In either case, but particularly for the latter, there is a need to accommodate the associated residual stresses in structural integrity assessments such as those based upon the R6 failure avoidance procedure. Although in some circumstances the residual macro-stresses developed within weldments of components and structures can be calculated this is not so readily achieved in the case of residual stresses introduced by repair welds. There is a range of physical and mechanical techniques available to undertake the measurement of macro-residual stresses. Of these X-ray diffraction has the advantage that it is essentially non-destructive and offers the potential for evaluating stresses, which exist in the near surface layer. Although for many structural integrity assessments both the magnitude and distribution of residual stresses have to be accommodated it is not practical to make destructive measurements on weld repaired components and structures to establish the through section distribution of stresses. An approach is to derive a description of the appropriate macro-stresses by a combination of measurement and calculation on trial ferritic steel repair weldments. Surface measurements on the plant can then be made to establish the relationship between the repaired component or structure and the trial weld and thereby improve confidence in predicted stresses and their distribution from the near-surface measured values. Hence X-ray diffraction measurements at the near-surface of the plant weldment can be used to underwrite the quality of the repair by confirming the magnitude and distribution of residual stresses used for the integrity assessment to demonstrate continued safe operation. q 2004 Elsevier Ltd. All rights reserved. ; On many occasions repairs are undertaken to ...