Solid-State Recycling of AZ31 Mg Alloy Using Equal Channel Angular Pressing

The aim of this study is to solid-state recycle of AZ31 magnesium alloys chips through consolidation utilizing severe plastic deformation technique. The chips are consolidated using Equal Channel Angular Extrusion (ECAE) die. This severe plastic deformation technique has been used to consolidate powder successfully as well as to process bulk materials. In addition to improvement of mechanical properties of the recycled products over those recycled using conventional remelting process, starting with chips different orientation will result in more random crystallographic texture of the material. This random texture will lead to lower anisotropy that wrought magnesium alloys usually exhibit due to their hexagonal close packed (hcp) structure. A metallugraphical and mechanical investigation as well as texture measurements were carried out on the consolidated billets. Experimental parameters like processing temperatures, speed and number of passes can be varied to improve the consolidation and to engineer the crystallographic texture.