针对现代医疗、核电等高端装备领域发展对大规格高性能钨基高比重合金、钼及钼合金制品的紧迫需求，通过多元多相难熔金属组态优化设计，建立大规格高性能难熔金属制品微观组织-综合性能-形状尺寸-加工工艺相互作用机理及协同控制原理。探明大规格高性能难熔金属耐高温/耐冲击/耐磨损第二相设计理论及多相适配特征组织模式，揭示制品制备加工全过程中微观组织的遗传性及其与综合性能的内在关系，阐明微观组织-综合性能-形状尺寸-全过程加工工艺之间的协同控制机理，建立成分优化与多元多相微观组织调控原理与方法，大规格难熔金属材料致密化、均质化及形变机理与方法。为大规格高性能难熔金属制品的自主创新提供技术原型。

For the urgent needs of large-scale high-performance tungsten-based high-specific gravity alloys, molybdenum and molybdenum alloy products in the field of high-end equipment such as modern medical and nuclear power, we will design multi-phase refractory metal configuration, establish the processing mechanism of large-scale high-performance refractory metal product, microstructure-comprehensive performance-shape and size and synergistic control principle. Specifically, we will clarify the second phase design theory of high-performance refractory metal with high temperature/impact/wear resistance, and the multi-phase adaptive characteristic organization mode of large-scale refractory metal, revealing the heritability of microstructure and its comprehensive performance during the whole process of product preparation and processing. The synergistic control mechanism between micro-organization-integrated performance-shape size-process will also be clarified. Besides, we will also establish the principle and method of component optimization and multi-phase microstructure control, densification and homogenization principle, deformation mechanism and method. The technical prototypes will be provided for independent innovation of large-scale high-performance refractory metal products.