In this paper, the anisotropy of the Al-Zn-Mg-Sc-Zr alloy sheet in the peak-aged state (0°, 30°, 45°, 60° and 90° with the rolling direction) is studied. The results show that texture is one of the important factors affecting the anisotropy of the Al-Zn-Mg-Sc-Zr alloy. In addition, there are obvious differences in the Schmid factor of grains with different orientations. The 0° and 90° samples have smaller Schmid factors and higher strengths. However, the Schmid factor has a wide distribution range, which results in uneven deformation and easy cracks, so its elongation is low. On the contrary, the 45° and 60° samples have larger Schmid factors, but their numerical distribution range is smaller, so their strength is lower and the elongation is larger.

本文研究了Al-Zn-Mg-Sc-Zr合金薄板在峰时效状态（轧制方向为0°，30°，45°，60°和90°）下的各向异性。结果表明，织构是影响Al-Zn-Mg-Sc-Zr合金各向异性的重要因素之一。另外，不同取向的晶粒的施密特因子也存在明显差异。0°和90°样品的Schmid因子较小，强度较高。但是，施密德因子分布范围广，导致变形不均且容易产生裂纹，因此伸长率低。相反，45°和60°样品的Schmid因子较大，但其数值分布范围较小，因此强度较低，伸长率较大。