精品文档---下载后可任意编辑AZ31 镁合金挤压成形微观组织演化的试验讨论与数值模拟的开题报告摘要：镁合金作为一种轻质高强度的结构材料，在汽车、航空航天等领域得到了广泛的应用。其中，AZ31 镁合金是较为常用的一种，具有良好的综合性能。本讨论旨在对 AZ31 镁合金挤压成形过程中的微观组织演化进行试验讨论和数值模拟，并探讨其对材料力学性能的影响。首先，通过对 AZ31 镁合金进行挤压成形试验，猎取材料在挤压过程中的微观组织演化规律。在此基础上，使用数值模拟方法对挤压成形过程进行模拟，进一步分析材料的变形行为和微观组织演化情况。最后，通过实验和数值模拟的结果，探究材料的力学性能与微观组织演化之间的关系。本讨论的主要讨论内容包括：（1）AZ31 镁合金的制备与挤压成形试验；（2）挤压成形过程的数值模拟；（3）试验和模拟结果分析；（4）结论与展望。关键词：AZ31 镁合金；挤压成形；微观组织演化；数值模拟；力学性能。Abstract:Magnesium alloy, as a lightweight and high-strength structural material, has been widely used in the fields of automobiles, aerospace, and aviation. Among them, AZ31 magnesium alloy is a commonly used one, with good comprehensive performance. The aim of this study is to conduct an experimental study and numerical simulation on the microstructure evolution of AZ31 magnesium alloy during extrusion forming, and explore its impact on the mechanical properties of materials.Firstly, the microstructure evolution law of the material during extrusion forming was obtained by conducting extrusion forming experiment on AZ31 magnesium alloy. On this basis, numerical simulation method was used to simulate the extrusion forming process, and further analyze the deformation behavior and microstructure evolution of the material. Finally, the relationship between the mechanical properties of the material and the microstructure evolution 精品文档---下载后可任意编辑was explored through experimental and numerical simulation results.The main research contents of this study include: (1) Preparation and extrusion forming experiment of AZ31 magnesium alloy; (2) Numerical simulation of extrusion forming process; (3) Analysis of experimental and simulation results; (4) Conclusion and prospect.Keywords: AZ31 magnesium alloy; Extrusion forming; Microstructure evolution; Numerical simulation; Mechanical properties.
