Tracking the path of dislocations across ordered Al3Zr nano-precipitates in three dimensions

Deformation-induced dissolution and growth of precipitates in an Al–Mg–Er alloy during high-cycle fatigue

“…Similar mechanisms have been proposed from the investigation on the dissolution of cementite in pearlitic steel wires during plastic deformation [23]. Although previous experiments and theoretical calculations indicated that dislocations would change from shearing precipitate particles to bypassing them (Orowan mechanism) when the particle size increased over 4-6 nm at room temperature for Al 3 Sc [6], Al 3 (Zr, Sc) [24] and Al 3 Zr [25] precipitates during tensile, creep or cold rolling deformations. The accumulated strain during fatigue tests could become large enough to shear particles considerably larger than the critical size [26].…”

The structural stability, mechanical properties and stacking fault energy of Al3Zr precipitates in Al-Cu-Zr alloys: HRTEM observations and first-principles calculations

“…C 44 > 0; C 11 > jC 12 j; C 11 þ 2C 12 > 0: (4) To verify the accuracy of our calculations alloyed with various concentrations ternary elements, we first compare the calculated results of pure Al 3 Zr for the two phases with previous theoretical and experimental data from the literature in Table 4. In general, our results are in good agreement with experiments and previous theoretical calculations.…”

Reverse Monte Carlo reconstruction algorithm for discrete electron tomography based on HAADF‐STEM atom counting

“…With regard to future work, this procedure has the potential for determining the size and shape of nano-objects embedded in a matrix. In this case, it has been demonstrated that various high-resolution projections are attainable that can lead to realistic reconstructions Lefebvre et al, 2014).…”