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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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Simandjuntak, Sarinova
Anglia Ruskin University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Investigating the Effects of H2O Interaction with Rainscreen Façade ACMs During Fire Exposurecitations
- 2020Comparison of measured and modelled residual stresses in a welded P91 steel pipe undergoing post weld heat treatmentcitations
- 2019Corrosion threshold data of metallic materials in various operating environment of offshore wind turbine parts (tower, foundation, and nacelle/gearbox)citations
- 2014Practical use of defect assessment procedures for industrial component integrity assessment, Materials at High Temperaturescitations
- 2009Measuring and modelling residual stresses in butt welded P91 steel pipe including effects of phase transformationscitations
- 2009Spatial variation of residual stresses in a welded pipe for high temperature applicationscitations
Places of action
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article
Comparison of measured and modelled residual stresses in a welded P91 steel pipe undergoing post weld heat treatment
Abstract
The process of fusion arc welding of steel pipes in power generation plants induces residual stresses which may be detrimental to the integrity and endurance of plant pipelines. P91 is high-grade steel used in the construction of pipelines carrying hot steam at high pressure, conditions which cause creep during service. Welded P91 pipes are usually subjected to post-weld heat treatment (PWHT) to mitigate the magnitude of residual stresses and temper the material, hence improving its resistance to creep. In this paper, the finite element (FE) method of modelling residual stresses due to PWHT in a circumferentially butt-welded P91 pipe is presented. The PWHT hold temperature is 760 ﰫC. The paper describes the X-Ray Diffraction (XRD) and Deep-Hole Drilling (DHD) experimental techniques and how they are applied to measure residual stresses in the welded P91 pipe after PWHT. The material property data, necessary for the FE simulation of PWHT, has been obtained from stress- relaxation tests on P91 uniaxial tensile specimens at 760 ﰫC. Good agreements have been achieved between the results of the FE method and the two sets of experimentally-measured residual stresses.