原位合成TiC颗粒增强铝基复合材料研究进展

Research progress on in-situ synthesized TiC particle reinforced aluminum matrix composites

原位合成TiC颗粒增强铝基复合材料具有密度小、比模量高、低热膨胀系数、热稳定性和导热性能良好,以及耐磨性能和耐有机液体和溶剂侵蚀优良等一系列优点,成为了近年来金属基复合材料的研究热点。本文从反应体系、显微组织、力学性能和强化机制四个方面,综述了近年来原位合成TiC/Al复合材料的研究进展,指出了其存在的问题并展望了其发展趋势,以期为研究和开发原位合成颗粒增强铝基复合材料提供参考。

In-situ synthesized TiC particle reinforced aluminum matrix composites have low density,high specific modulus,low thermal expansion coefficient,good thermal stability and thermal conductivity,good wear resistance and resistance to organic liquid and solvent erosion advantages.In recent years,the composites have become a research hotspot of metal matrix composites.The present paper reviewed the research progress of in-situ synthesized TiC/Al composites from four aspects of reaction system,microstructure,mechanical properties and strengthening mechanism.The existing problems and the development trend of the composites were pointed out and prospected,which will provide reference for the research and development of in-situ synthesized particle reinforced aluminum matrix composites.