The method of constructing a 2D simulation model based on the real microstructure is developed to simulate the microstructural evolution of materials. Microstructure photographs of two typical metallic materials, 40Cr and TC4, are analyzed by scanning electron microscopy-electron backscattering diffraction. Then, the photographs are converted into digital images and the grain topology information in the photographs is reserved. Based on this information, the true microstructure of materials is rebuilt with the finite element software ABAQUS using the PYTHON rogramming language. The 2D model the true microstructure will be of importance for improving the accuracy of elastoplastic finite element simulation for polycrystals.

开发了一种基于真实微观结构的二维模拟模型的构建方法，以模拟材料的微观结构演化。通过扫描电子显微镜-电子背散射衍射分析了两种典型的金属材料40Cr和TC4的显微照片。然后，将照片转换为数字图像，并保留照片中的颗粒拓扑信息。根据这些信息，使用PYTHON编程语言，使用有限元软件ABAQUS重建材料的真实微观结构。真正的微观结构的二维模型对于提高多晶弹塑性有限元模拟的准确性至关重要。