(1. 上海交通大学 微纳米科学技术研究院，上海 200030；
2. 南京理工大学 材料科学与工程系，南京 210094)
摘 要: 对颗粒增强铝基复合材料进行压力铸造工艺加工，是解决颗粒增强铝基复合材料近终成形的一种新方法。在模拟压铸充型的条件下，研究了SiCp/ZL102复合材料的半固态流动变形性能。结果表明，在相同的实验条件下，复合材料的半固态流动变形性能比基体合金优越，且在SiC颗粒体积分数低于12％的条件下，SiC颗粒越多，材料的半固态流动变形性能越好。此外，随保温温度的提高、保温时间和重锤高度的增加，复合材料和基体合金的半固态流动变形性能都有所提高。
关键字: SiC颗粒；复合材料；半固态；流变性能
properties of SiCp/ZL102 composites
（1. Research Institute of Micro-nanometer Science and Technology,
Shanghai Jiaotong University, Shanghai 200030, China;
2. Department of Materials Science and Engineering, Nanjing University of
Science and Technology, Nanjing 210094, China）
Abstract:The new moulding technics idea of particulates reinforced aluminum matrix composites is to apply die-casting into this kind of material. Semi-solid f low and deformation properties of SiCp/ZL102 composites were studied. The results show that under the same experimental condition, the semi-solid flow and deformation properties of the composites are superior to that of matrix alloy and increase with increasing the SiC particles' volume fraction which is below 12%. The semi-solid flow and deformation properties of the composites also increase with the increasing of temperature, time and the height of hammer.
Key words: SiC particle; composite; semi-solid; flow and deformation property
