Influence of homogenising and extrusion on plasticity of as cast AZ31 magnesium alloy

摘要

Forward extrusion experiments of as cast AZ31 magnesium alloy were carried out at differentntemperatures and different extrusion ratios using the homogenised and non-homogenised billets.nThe elongation of pre- and post-extrusion of the two different initial state billets were investigated.nExperimental results show that elongation will increase when the as cast AZ31 magnesium alloy isntreated by homogenising. Regardless of whether the billets are treated by homogenising, thenelongation of post-extrusion is improved compared with that of pre-extrusion. The elongation ofnpost-extrusion using the homogenised billet is higher than that of the non-homogenised one.