In situ evaluation of dynamic precipitation during plastic straining of an Al–Zn–Mg–Cu alloy

Evolution of precipitate microstructure during stress aging of an Al–Zn–Mg–Cu alloy

“…The ultra-high strength properties of Al-Zn-Mg-Cu alloy are greatly determined by interactions between the dislocations and precipitates, and these interactions are closely relevant with the sizes of precipitates [32]. As shown in Fig.…”

Evolution of a honeycomb network of precipitates in a hot-rolled commercial Mg–Y–Nd–Zr alloy

“…T5 or T6 treatments). Consequently, the actual precipitation in these systems can take place dynamically during high temperature deformation [7][8][9][10]. Thus, a complex-coupling may occur between high temperature plastic deformation from hotworking and subsequent cooling, and the precipitation processes itself.…”

Effects of pre-treatments on aging precipitates and corrosion resistance of a creep-aged Al–Zn–Mg–Cu alloy

“…Also, the corrosion resistance of the creep-aged 7075 aluminum alloy is sensitive to the creep-aging processing [32]. Deschamps et al [33] systematically investigated the coupling between precipitation and plasticity in an Al-Zn-Mg-Cu alloy using in situ small angle X-ray scattering measurements during thermomechanical tests, and showed that the plasticity induces an accelerated coarsening kinetics which is mainly linked with the accumulation of a supersaturation of vacancies during plastic flow. Fribourg et al [34] investigated the evolution of precipitate microstructure during creep of an AA7449 T7651 aluminum alloy, and found that plastic deformation applied at the aging temperature induces an accelerated precipitate coarsening, and the movement itself of dislocations plays a key role in the microstructure evolution.…”