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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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Vorontsov, Vassili A.
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023Miniaturised experimental simulation of open-die forgingcitations
- 2022Strengthening κ-carbide steels using residual dislocation contentcitations
- 2022Precipitate dissolution during deformation induced twin thickening in a CoNi-base superalloy subject to creepcitations
- 2020Generalised stacking fault energy of Ni-Al and Co-Al-W superalloyscitations
- 2019A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitatescitations
- 2018Mechanical behaviour of Ti-Nb-Hf alloyscitations
- 2017Alloying effects on oxidation mechanisms in polycrystalline Co–Ni base superalloyscitations
- 2017Functional stability of a ferromagnetic polycrystalline Ni2MnGa high temperature shape memory alloycitations
- 2017A high strength Ti–SiC metal matrix compositecitations
- 2016Coarsening behaviour and interfacial structure of γ′ precipitates in Co-Al-W based superalloyscitations
- 2016Determination of superlattice stacking fault energies in multi-component superalloys
- 2016Multi-scale modelling of high-temperature deformation mechanisms in Co-Al-W-based superalloys.
- 2016Understanding the "blue spot"citations
- 2016The dislocation mechanism of stress corrosion embrittlement in Ti-6Al-2Sn-4Zr-6Mocitations
- 2016Effect of precipitation on mechanical properties in the β-Ti alloy Ti-24Nb-4Zr-8Sncitations
- 2015The effect of grain size on the twin initiation stress in a TWIP steelcitations
- 2015Superelastic load cycling of gum metalcitations
- 2015Nanoprecipitation in a beta-titanium alloycitations
- 2015Segregation at stacking faults within the γ′ phase of two Ni-base superalloys following intermediate temperature creepcitations
- 2014The dynamic behaviour of a twinning induced plasticity steelcitations
- 2014Alloying and the micromechanics of Co-Al-W-X quaternary alloyscitations
- 2014Alloying effects in polycrystalline γ′ strengthened Co-Al-W base alloyscitations
- 2014Effect of alloying on the oxidation behaviour of Co-Al-W superalloyscitations
- 2012High-resolution electron microscopy of dislocation ribbons in a CMSX-4 superalloy single crystalcitations
- 2012Shearing of γ′ precipitates in Ni-base superalloyscitations
- 2011Prediction of mechanical behaviour in Ni-base superalloys using the phase field model of dislocationscitations
- 2010Shearing of γ́ precipitates by a (112) dislocation ribbons in Ni-base superalloyscitations
- 2008Phase field modelling of stacking fault shear in nickel base superalloys
Places of action
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article
Generalised stacking fault energy of Ni-Al and Co-Al-W superalloys
Abstract
<p>Generalised stacking fault energy surfaces (Γ-surfaces) are calculated for Co-Al-W-based and Ni-Al-based superalloys from first-principles calculations. A Special Quasi-random Structure is employed in the calculation of the ternary compound, Co<sub>3</sub>(Al,W). Phase field simulations are used to compare dislocation cores present in Co-based and Ni-based superalloys. The higher planar fault energies of the Co-based system lead to a more constricted dislocation which can have implications on both the bowing of dislocations as well as cross-slip. Additionally, planar fault energies of various L1<sub>2</sub> compounds are compared to explain observed segregation pathways in both types of superalloy. Both the planar fault energies and the segregation pathways are discussed within the context of strengthening mechanisms in superalloys.</p>