Precipitation strengthening is a highly complex phenomenon on the nanoscale, responsible
for providing strength in Al-Cu, Al-Mg-Cu, Al-Mg-Zn and Al-Mg-Si alloys. Advances in …

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 …

High strength aluminum alloys are widely used but their strength is reduced as nano-
precipitates coarsen rapidly in medium and high temperatures, which greatly limits their …

The structural and compositional evolution of precipitates in Al-Mg-Si-Cu alloys were
systematically investigated by atomic resolution high-angle annular dark-field scanning …

The peak-hardness aged (T6) precipitates in 6061 (Mg: Si≈ 2: 1) and Si-enriched 6061 (Mg:
Si≈ 1: 1.1) alloys have been characterized using transmission electron microscopy and …

The natural aging and artificial aging behaviours of Al-Mg-Si-Cu alloys with different Mg/Si
ratios and Cu additions were investigated using Vickers microhardness measurements …

This study concerns the effect of low Cu additions (≲ 0.1 at.%) on the precipitate crystal
structure evolution in three Al-Mg-Si (-Cu) alloys during overageing. The evolution was …

Dissolving the inherent central segregation is critical to improve the performance of twin-roll
casting (TRC) aluminum strips. In this study, we investigated the effects of Cu content (0.8 …

Single-pass deposits of 6061 aluminum alloy with a single-layer thickness of 4 mm were
fabricated by force-controlled friction-and extrusion-based additive manufacturing. The …

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 …