| 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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Mottura, Alessandro
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024First-principles calculations of intrinsic stacking fault energies and elastic properties in binary nickel alloyscitations
- 2018First-principles modeling of superlattice intrinsic stacking fault energies in Ni3Al based alloys
- 2018First-principles modeling of the temperature dependence for the superlattice intrinsic stacking fault energies in L12 Ni75-xXxAl25 alloyscitations
- 2018A kinetic Monte Carlo study of vacancy diffusion in non-dilute Ni-Re alloyscitations
- 2017First-principles calculations of thermodynamic properties and planar fault energies in Co3X and Ni3X L12 compoundscitations
- 2016Alloys-by-designcitations
- 2015High resolution energy dispersive spectroscopy mapping of planar defects in L12-containing Co-base superalloyscitations
- 2014Three-dimensional characterization of the permeability of W–Cu composites using a new “TriBeam” techniquecitations
- 2014Can slow-diffusing solute atoms reduce vacancy diffusion in advanced high-temperature alloys?citations
- 2014Nickel-rhenium compound sheds light on the potency of rhenium as a strengthener in high-temperature nickel alloyscitations
- 2014Modelling of the influence of alloy composition on flow stress in high-strength nickel-based superalloyscitations
- 2012A first-principles study of the effect of Ta on the superlattice intrinsic stacking fault energy of L12-Co3(Al,W)citations
- 2010Atom probe tomography analysis of the distribution of rhenium in nickel alloyscitations
- 2010Analysis of atomic-scale phenomena and the rhenium effect in nickel superalloys
- 2008A critique of rhenium clustering in Ni-Re alloys using extended X-ray absorption spectroscopycitations
Places of action
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article
Atom probe tomography analysis of the distribution of rhenium in nickel alloys
Abstract
Atom probe tomography (APT) is used to characterise the distributions of rhenium in a binary Ni-Re alloy and the nickel-based single-crystal CMSX-4 superalloy. A purpose-built algorithm is developed to quantify the size distribution of solute clusters, and applied to the APT datasets to critique the hypothesis that rhenium is prone to the formation of clusters in these systems. No evidence is found to indicate that rhenium forms solute clusters above the level expected from random fluctuations. In CMSX-4, enrichment of Re is detected in the matrix phase close to the matrix/precipitate (gamma/gamma') phase boundaries. Phase field modelling indicates that this is due to the migration of the gamma/gamma' interface during cooling from the temperature of operation. Thus, neither clustering of rhenium nor interface enrichments can be the cause of the enhancement in high temperature mechanical properties conferred by rhenium, alloying. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.