(1. 上海交通大學(xué) 微納米科學(xué)技術(shù)研究院，上海 200030；
2. 南京理工大學(xué) 材料科學(xué)與工程系，南京 210094)
摘 要: 對顆粒增強(qiáng)鋁基復(fù)合材料進(jìn)行壓力鑄造工藝加工，是解決顆粒增強(qiáng)鋁基復(fù)合材料近終成形的一種新方法。在模擬壓鑄充型的條件下，研究了SiCp/ZL102復(fù)合材料的半固態(tài)流動(dòng)變形性能。結(jié)果表明，在相同的實(shí)驗(yàn)條件下，復(fù)合材料的半固態(tài)流動(dòng)變形性能比基體合金優(yōu)越，且在SiC顆粒體積分?jǐn)?shù)低于12％的條件下，SiC顆粒越多，材料的半固態(tài)流動(dòng)變形性能越好。此外，隨保溫溫度的提高、保溫時(shí)間和重錘高度的增加，復(fù)合材料和基體合金的半固態(tài)流動(dòng)變形性能都有所提高。
關(guān)鍵字: SiC顆粒；復(fù)合材料；半固態(tài)；流變性能
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
