Influence of Texture on the Tensile Properties in AZ31 Magnesium Alloy

摘要

Magnesium alloys are drawing a lot of attention and have been extensively studied. The major obstacle to the practical application of the alloys is the poor formability at room temperature, originating basically from the insufficient number of slip system. Development of a proper texture is one promising solution to improve the formability. In the present work, after extrusion and full annealing, microstructures, texture developments and tensile properties_of AZ31 Mg alloys are studied. After full annealing strong <101-bar 0> | | ED fiber texture and weak <112-bar 0> + <123-bar 0> || ED fiber texture (c-axes in the radial direction) were developed. The textures are distinctly influencing the tensile properties, which can be understood in terms of the activation of basal slip modes. With the random orientation, which is developed in the 45 deg sample to the extrusion direction, the better workability can be achieved at room temperature.