【摘要】 随着全球能源危机和环境危机加剧，高性能轻质节能材料和新型储能材料的研发和规模应用需求日益紧迫。镁合金作为最轻的金属结构材料，应用于轨道交通、航空航天可显著地节能减排，且绿色高安全性的镁基储能材料也有着巨大的应用前景。特别地，镁及镁合金是我国的优势材料资源，拓展镁合金的广泛应用具有重要的战略意义。但目前高性能镁合金牌号明显偏少，依靠实验开发为主的现状严重影响了镁合金更大规模的推广应用。关键热力学动力学基础信息是高性能镁合金设计与应用的基础和必要信息。然而，相较于钢铁、铝合金及钛合金等，镁合金的热力学与动力学基础数据和数据精度均相当有限，这成为制约传统镁合金材料优化、新型高性能镁合金材料高效智能研发和镁合金大规模快速应用的瓶颈问题。为此，系统地研究多元镁合金的关键热力学动力学基础数据、合金元素间的交互作用特征及交互作用机理，构建系统的、高精度的多元镁合金热力学和动力学数据库，是推动高性能镁合金材料智能设计和促进镁合金更大规模应用的关键路径之一。更多还原

【Abstract】 With the intensification of the global energy crisis and environmental crisis, the development and large-scale application demand of high-performance lightweight energy-saving materials and new energy storage materials are becoming increasingly urgent. Magnesium alloys, as the lightest metal structure material, can be energy saving and emission reduction when applied to rail transportation and aerospace. Furthermore, the green and highly secure magnesium-based energy storage materials also show great application prospects. Especially, magnesium and its alloys are the advantageous material resources in China, and thus expanding the wide application of magnesium alloys is of great strategic significance to our country. However, the number of high-performance magnesium alloy grades is obviously small at present. The traditional experimental development severely hinders the promotion and application of magnesium alloys on a larger scale. The key basic data of thermodynamic and kinetics is of extreme importance and necessity for the design and application of high-performance magnesium alloys. Nevertheless, the thermodynamic and kinetics data and data accuracy of magnesium alloys are both quite limited, in comparison with those of steel, aluminum alloys and titanium alloys, etc. It has become a key bottleneck point restricting the optimization of traditional magnesium alloys, the efficient and intelligent development of new high-performance magnesium alloys, and the large-scale application of magnesium alloys. Therefore, systematic research on the key basic data of thermodynamic and kinetic of multivariate magnesium alloys, the interaction characteristics and interaction mechanism between alloying elements, and the construction of a systematic high-precision thermodynamic and kinetic databases for multivariate magnesium alloys are one of the key paths to promote the intelligent design of high-performance magnesium alloys and the application of magnesium alloys on a larger scale.更多还原