论文部分内容阅读
采用粉末热压工艺制成的(W+CeO2)p/2024Al复合材料作为坯料,对这种复合材料进行锻造性能研究。详细描述55%和78%锻造变形量的复合材料的显微组织形貌,研究不同锻造变形量时复合材料的力学性能和断裂机制。研究分析表明,经过锻造复合材料内部组织致密、颗粒分布比较均匀,具有较高的力学性能。锻造变形量不同,复合材料内部的组织结构不同,导致材料的力学性能相差很大,材料的断裂方式也不同。变形量55%的复合材料显示出明显的韧性断裂,当变形量达到78%时呈脆性断裂。
The (W + CeO2) p / 2024Al composites made by powder hot pressing process were used as the blank to study the forging properties of the composites. The microstructure of composites with 55% and 78% forging deformation is described in detail. The mechanical properties and fracture mechanism of the composites with different forging deformations are studied. Research and analysis show that the internal structure of the forged composite material is dense and the particles are distributed evenly with high mechanical properties. Forging deformation is different, the internal structure of the composite material is different, resulting in a great difference between the mechanical properties of materials, materials, fracture mode is also different. The composites with 55% deformation show obvious ductile fracture, brittle fracture when the amount of deformation reaches 78%.