Basic Research on Multi-Directional Forging of AZ80Mg Alloy for Fabrication of Bulky Mechanical Components

In this study, a commercial hot-extruded AZ80Mg alloy was multi-directionally forged (MDFed) at room temperature by employing pass strains of Δε = 0.1. The effects the combined processes MDFing and ageing on microstructural evolution strengthening were precisely examined in advance. coarse initial grains gradually subdivided into ultrafine multiple mechanical twinning kinking. As observed, effectively suppressed sharp basal texture enabled to high cumulative strains. Although tended increase hardness yield stress compared those fabricated using simple lower strain regions, properties almost comparable independent regions higher beyond ΣΔε 2.0. Yield strength over 505 MPa, ultimate tensile 612 MPa ductility 7% constantly achieved all processes. certain selected applied bulk samples for fabricating components, frequent cracking hindered regions. This finding signified that adequate process is dependent sample size. However, with smaller than 0.1 strain. Thus, well-balanced properties—yield 420 540 10%—could be successfully fabricated.