Jianguo Lin

TL;DR: In this paper, a model for hot deformation of aluminium alloys is proposed based on consideration of two processes: (i) increase of dislocation density, induced by plastic deformation, leading to generation, rotation and migration of low angle grain boundaries (LABs) and their transformation into high angle grain boundary (HABs); (ii) migration of HABs leading to annihilation of both LABs and ABs.

TL;DR: In this paper, the drawability of AA6082 at a comparable temperature range between two elevated temperature forming processes: termed (i) Low Temperature Hot Form and Quench (LT-HFQ®) or pre-cooled HFQ®, patented by Adam et al.

TL;DR: In this paper, the authors investigated the ageing behavior of peak-aged aluminium alloy AA6082-T6 with initial loading in both elastic and plastic regions and found that the initial strain levels contribute little effect on yield strength evolution during stress-relaxation ageing, as softening from the coarsening of β − precipitates is balanced by hardening from dislocations.

TL;DR: In this paper, a post-weld strength prediction model based on the theories of plasticity has been developed to estimate the postweld properties of the tailor welded specimens.

TL;DR: In this paper, a viscoplastic constitutive model was developed to predict the flow stress and formability of a sheet metal alloy undergoing temperature, strain rate and strain path changes, and the capability of the proposed model was demonstrated by presenting the effect of these varying conditions on the stress-strain curves and FLDs of the aluminium alloy AA5754.