[HTML][HTML] Making sustainable aluminum by recycling scrap: The science of “dirty” alloys

D Raabe, D Ponge, PJ Uggowitzer, M Roscher… - Progress in materials …, 2022 - Elsevier
There are several facets of aluminum when it comes to sustainability. While it helps to save
fuel due to its low density, producing it from ores is very energy-intensive. Recycling it shifts …

Precipitation kinetics in metallic alloys: Experiments and modeling

A Deschamps, CR Hutchinson - Acta Materialia, 2021 - Elsevier
Nanoscale precipitation is one of the most widely used microstructural tools to manipulate
the properties of metallic alloys, and especially to reach high strength. Optimal …

Freezing solute atoms in nanograined aluminum alloys via high-density vacancies

S Wu, HS Soreide, B Chen, J Bian, C Yang, C Li… - Nature …, 2022 - nature.com
Low-temperature decomposition of supersaturated solid solution into unfavorable
intergranular precipitates is a long-standing bottleneck limiting the practical applications of …

Characterization of lattice defects in metallic materials by positron annihilation spectroscopy: A review

J Čížek - Journal of Materials Science & Technology, 2018 - Elsevier
Positron is an excellent probe of lattice defects in solids. A thermallized positron delocalized
in lattice can be trapped at open volume defects, eg vacancies, dislocations, grain …

Solute cluster evolution during deformation and high strain hardening capability in naturally aged Al–Zn–Mg alloy

P Zhang, K Shi, J Bian, J Zhang, Y Peng, G Liu… - Acta Materialia, 2021 - Elsevier
The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to
investigate the effects of solute clusters on its mechanical properties. It has been observed …

Study of precipitation in Al–Mg–Si alloys by Atom Probe Tomography I. Microstructural changes as a function of ageing temperature

MW Zandbergen, Q Xu, A Cerezo, GDW Smith - Acta Materialia, 2015 - Elsevier
Abstract Atom Probe Tomography (APT) analysis and hardness measurements were used to
characterise the early stages of precipitation in an Al–0.51 at.% Mg–0.94 at.% Si alloy. The …

[HTML][HTML] Modelling the spatial evolution of excess vacancies and its influence on age hardening behaviors in multicomponent aluminium alloys

X Wang, D Zhao, Y Xu, Y Li - Acta Materialia, 2024 - Elsevier
Excess vacancies play crucial roles in the precipitation of age-hardening precipitates in
aluminium alloys, but their spatial evolution across grains during heat treatments is less …

Enhanced dispersoid precipitation and dispersion strengthening in an Al alloy by microalloying with Cd

F Qian, S Jin, G Sha, Y Li - Acta Materialia, 2018 - Elsevier
The dispersion hardening effect of Mn (Fe)-containing dispersoids in aluminium alloys has
long been ignored since it is difficult to achieve a high number density of fine dispersoids …

Design strategy for controlled natural aging in Al–Mg–Si alloys

M Werinos, H Antrekowitsch, T Ebner, R Prillhofer… - Acta Materialia, 2016 - Elsevier
This study presents a design strategy for Al–Mg–Si alloys to control natural aging. Recently,
trace addition of Sn was shown to suppress natural aging for up to two weeks, which was …

Atomic structures of precipitates in Al–Mg–Si alloys with small additions of other elements

T Saito, EA Mørtsell, S Wenner… - Advanced …, 2018 - Wiley Online Library
In Al–Mg–Si alloys, additions of only a few weight percent of Mg and Si enable formation of
hardening precipitates during heat treatment. The precipitation is complex and is influenced …