Precipitation behavior in an Al-Cu-Mg-Si alloy during ageing

The upper bounds of the range of rotation angles exhibited by S-phase precipitates sit- uated away from T-phase interfaces corresponds well with the noted rotation that occur at

condition. HAADF STEM images of precipitates from the three investigated alloys. The precipitates chosen are typical for the respective alloy and shows that the addition of Ge and

The images labelled ‘ Sum’ correspond to the sum of all loading maps used in the phase identification. By comparing the sum with the corresponding area in the VDF image, it is

For alloy S, the precipitates typically showed a predominantly Al-Mg-Si containing β″ phase and U2 phase interior, and some Cu enrichment, as well as a few sub-units of β Cu ′

Assuming similar interface energies for the precipitates in all three Li-added alloys (which is reasonable since the hardening phase is the same), we expect RXL0 to have a

3 shows that after 10 minutes of the isothermal heat treatment at 463K (190°C) the alloy containing 0.10 wt% Cu has a slightly higher hardness than the alloy containing 0.01 wt% Cu,

The effects of quench rate after solution heat treatment in combination with 1% pre-deformation on precipitation hardening in three Al-Mg-Si alloys have been investigated by

Grain boundary structures and their correlation with intergranular corrosion in an extruded Al-Mg-Si-Cu alloyA. Electron backscatter diffraction demonstrates the presence of