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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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Dumitraschkewitz, Phillip
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Unraveling the potential of Cu addition and cluster hardening in Al-Mg-Si alloyscitations
- 2023In situ transmission electron microscopy as a toolbox for the emerging science of nanometallurgycitations
- 2023Fast differential scanning calorimetry to mimic additive manufacturing processing: specific heat capacity analysis of aluminium alloyscitations
- 2023Strain-induced clustering in Al alloyscitations
- 2022MEMS-Based in situ electron-microscopy investigation of rapid solidification and heat treatment on eutectic Al-Cucitations
- 2021Giant hardening response in AlMgZn(Cu) alloyscitations
- 2020Microstructural Change during the Interrupted Quenching of the AlZnMg(Cu) Alloy AA7050citations
- 2019Size-dependent diffusion controls natural aging in aluminium alloyscitations
- 2017Impact of Alloying on Stacking Fault Energies in γ-TiAlcitations
- 2016Analysis of initial clustering in Al-Mg-Si alloys via atom probe tomography
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article
Strain-induced clustering in Al alloys
Abstract
Solute clusters represent the start of decomposition during aging of aluminum alloys and can generate strengthening while keeping the strain hardening high in comparison with shearable precipitates. In this study, clusters in a pre-aged AlMgSiCu 6xxx-series and a recently developed AlMgZnCu crossover alloy were investigated by atom probe tomography (APT) and tensile testing before and after straining. Pre-aging was performed at 100 °C and 60 °C respectively, and a tensile strain of 5% was applied. The key feature detected was the formation of clusters during plastic deformation, referred to here as “strain-induced clustering”. It is explained based on diffusion enhancement by the strain-induced formation of excess vacancies during tensile testing, and evaluated by means of a simple modeling approach. In addition to the significant intrinsic contribution of clusters to strain hardening via dislocations, strain-induced clustering adds a hypothetical non-dislocation-based component to strain hardening.