In this study, a sheet of AZ31 magnesium alloy was compressed by 3%, 5%, and 7% along the in-plane direction while simultaneously applying a compressive load in the normal direction (ND) to avoid buckling during compression. Changes in the microstructure and texture were measured after annealing. Recrystallization and grain growth occurred in grains with higher deformation energy than surrounding grains after annealing at 300 °C. The area fraction of the orientations for which the c-axis and transverse direction (TD) are parallel (twinned grains) and the orientations with an angle between the c-axis and ND ranged from 30° to 60°, a situation that is favorable for accommodating strain along the thickness direction by slip and detwinning, increased compared to the as-received specimen. The favorable orientations tended to increase as the compressive strain increased. As a result, the formability for the bi-axial stretch mode is higher in the specimen annealed at 300 °C for 60 min after 7% compression than in the as-received specimen.

在这项研究中，一块AZ31镁合金板在平面方向上被压缩了3％，5％和7％，同时在法向（ND）上施加了压缩载荷，以避免在压缩过程中发生弯曲。退火后测量微观结构和织构的变化。在300°C退火后，变形能量高于周围晶粒的晶粒发生了再结晶和晶粒长大。c轴和横向（TD）平行的取向的面积分数（孪生晶粒），且c夹角为c的取向的面积分数轴和ND在30°到60°的范围内，这比通过接收的试样增加了一种有利于在厚度方向上通过滑动和脱缠来适应应变的情况。随着压缩应变的增加，有利的取向倾向于增加。结果，在7％压缩后在300℃下退火60分钟的样品中，双轴拉伸模式的可成形性比所接收的样品中的高。