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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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Van Dijk, Niels
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021A novel 3D mixed-mode multigrain model with efficient implementation of solute drag applied to austenite-ferrite phase transformations in Fe-C-Mn alloyscitations
- 2019Self healing of creep damage in iron-based alloys by supersaturated tungstencitations
- 2018Analysis of the grain size evolution for ferrite formation in Fe-C-Mn steels using a 3D model under a mixed-mode interface conditioncitations
- 2018In Situ 3D Neutron Depolarization Study of the Transformation Kinetics and Grain Size Evolution During Cyclic Partial Austenite-Ferrite Phase Transformations in Fe-C-Mn Steelscitations
- 2018Modelling study on the three-dimensional neutron depolarisation response of the evolving ferrite particle size distribution during the austenite–ferrite phase transformation in steelscitations
- 2017Linking Surface Precipitation in Fe-Au Alloys to Its Self-healing Potential During Creep Loadingcitations
- 2014Position-dependent shear-induced austenite–martensite transformation in double-notched TRIP and dual-phase steel samplescitations
- 2014Mechanical stability of individual austenite grains in TRIP steel studied by synchrotron X-ray diffraction during tensile loadingcitations
- 2014The mechanical stability of retained austenite in low-alloyed TRIP steel under shear loadingcitations
- 2008Isothermal Martensitic Transformation in a 12Cr-9Ni-4Mo-2Cu Stainless Steel in applied Magnetic Fieldscitations
- 2005Contribution to the Understanding of Austenite Stability in a 12Cr-9Ni-4Mo Maraging Steelcitations
Places of action
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article
Self healing of creep damage in iron-based alloys by supersaturated tungsten
Abstract
When metals are mechanically loaded at elevated temperatures for extended periods of time, creep damage will occur in the form of cavities at grain boundaries. In the present experiments it is demonstrated that in binary iron-tungsten alloys creep damage can be self healed by selective precipitation of a W-rich phase inside these cavities. Using synchrotron X-ray nano-tomography the simultaneous evolution of creep cavitation and precipitation is visualized in 3D images with a resolution down to 30 nm. The degree of filling by precipitation is analysed for a large collection of individual creep cavities. Two clearly different types of behaviour are observed for isolated and linked cavities, where the isolated cavities can be filled completely, while the linked cavities continue to grow. The demonstrated self-healing potential of tungsten in iron-based metal alloys provides a new perspective on the role of W in high-temperature creep-resistant steels. ; Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; Novel Aerospace Materials ; RST/Fundamental Aspects of Materials and Energy ; (OLD) MSE-1 ; QN/Afdelingsbureau