中文摘要：

对近年来国内外在纳米层状金属材料的强化能力及其尺度与界面效应、塑性形变行为及稳定性等基本规律的研究进展进行了系统的总结，并对纳米层状材料的强化能力与韧化能力进行了深入的探讨．最后，对纳米层状金属材料的强化与韧化能力中的关键科学问题及未来研究进行了展望．

英文摘要：

In this paper, recent investigations on strengthening ability and effects of length scale and interface, plastic deformation behavior and stability of nanolayered metallic materials are reviewed systematically. The basic mechanisms on the abilities in strengthening and toughening for nanolayered metallic materials were dis- cussed. Finally, several key issues on improving the strengthening and toughening abilities of the nanolayered mate- rials and the potential investigations in the future are stressed.