Effect of pre-strain and work hardening rate on void growth and coalescence in AA5052

Void growth and coalescence in irradiated copper under deformation

“…By permitting a precise control of the geometry of the voids, model experiments allow assessing quantitatively the effect of the hardening behavior of the material around the voids on their subsequent growth and coalescence under deformation. Recent studies have for example described in details the effect of a pre-strain and work-hardening [40] or the effect of local microstructure [41] on void growth and coalescence in unirradiated material. Similarly, irradiation-induced hardening is expected to have an effect that requires to be quantified.…”

Surface ablation and threshold determination of AlCu4SiMg aluminum alloy in picosecond pulsed laser micromachining

“…Lee and Kannatey-Asibu [29] performed the investigation of laser shock peening using femtosecond laser pulses on aluminum alloy. Alinaghian et al [30] used ultrafast laser to study the effect of prestrain and work hardening rate on void growth and coalescence in aluminum alloy 5052. However, the ablation threshold of aluminum alloy in ultrafast pulsed laser micromachining was ignored in the above mentioned studies.…”

The interaction of dislocations and hydrogen-vacancy complexes and its importance for deformation-induced proto nano-voids formation in α-Fe

“…For example, several analytical models have been developed and extended to understand voids growth in alloys and steels (Benzerga et al, 2004;Fischer and Antretter, 2009;Khan and Liu, 2012;Lecarme et al, 2011;Li et al, 2011;Lou et al, 2014;Malcher et al, 2014;Tutyshkin et al, 2014). Besides experiments performed at microscopic level (Alinaghian et al, 2014;Tasan et al, 2014;Xu et al, 2015), some molecular dynamics simulations provided atomic view on growth of voids (Bringa et al, 2010;Traiviratana et al, 2008;Zhao et al, 2009). However, almost all these studies are focused on the hydrogenfree systems and most of the studies are on micro-void growth and coalescence.…”