The macro scale fabrication of high performance metals with nano-structure and nano effect and the revelation of the characteristic of microstructure evolution to the functional regulation are the major scientific problems and the core key technologies in metal materials field. The correlations among interface, size effects and plastic deformation, strengthen of metallic nano-materials were predominately reviewed. The emphasis was placed on the recent progress of the metal nano-composites fabricated in the macro scale, the applicability of the classic Hall-Petch relation and the rule of mixture law, and interface and size effects on the microstructure, mechanical properties and physical properties of metal nano-composites. The developmental trends of high performance metal nano-composites for the applications were proposed.%在宏观尺度上制造出具有纳米结构和纳米效应的高性能金属材料,并揭示这些材料的组织演化特征以实现功能调控,是金属材料学科面临的重大科学问题和需要解决的核心关键技术.阐述金属纳米材料界面、尺度与材料塑变、强化关系的主要研究进展,重点介绍宏观尺寸制备金属纳米复合材料、纳米尺度下经典Hall-Petch关系和复合材料混合定律的适用性、界面特征和尺度效应对材料微观结构、力学性能以及物理特性等的影响,指出面向应用的高性能金属纳米复合材料的发展趋势.
展开▼
