中文摘要：

金属基纳米复合材料是由纳米级金属或非金属增强体弥散分布在金属或合金基体中而制成的。该材料粤兼有金予和纳米相而具有独特的结构特征和物理、力学及化学性能，近年来备受关注并成为一种新兴的纳米复合藉尊童新型金属功能材料。综述了块体金属基纳米复合材料的最新研究成果，归纳了该材料的分类、制备方法和性能：并讨论了其应用前景。

英文摘要：

Metal matrix nanocomposites （MMNCs） are made of nano-sized reinforcements of metals or nonmetals well-distributed in metal or alloy matrix. These composites exhibit special microstructure feature and possess excellent physical, mechanical and chemical properties owing to their combination of metal with nanophases. Metal matrix nanocomposites （MMNCs） have raised considerable interest and become one of novel nanocomposites and new metal functional materials in recent years. In this paper, new research achievements of block metal matrix nanocomposites are summarized. The property, preparation and classification of these composites are also generalized. Moreover, the application prospects for metal matrix nanocomposites are discussed.