Mechanical properties and texture evolution during
hot rolling of AZ31 magnesium alloy
hot rolling of AZ31 magnesium alloy
(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)
Abstract: Mechanical properties and texture evolutions of the as-rolled AZ31 Mg sheets were investigated. The results show that the grains of the sheets are significantly refined after hot rolling. The mechanical properties of the as-rolled samples are enhanced due to the grain size refinement. The intensity of basal texture decreases with the increase of deformation ratio, and double-peak type basal texture is discovered in the intermediate and large strain hot rolling processes. The formation of the texture is ascribed to the activities of prismatic and non-basal <c+a> slips, which is the same as the 30% rolled and 50% rolled samples. The incline of basal planes exerts an effect on the mechanical anisotropy during tension along rolling direction (RD) and transverse direction (TD) at room temperature.
Key words: magnesium alloy; AZ31; hot rolling; texture; mechanical properties; electron backscattered diffraction