金属纳米材料力学性能的研究进展

PROGRESS IN MECHANICAL PROPERTIES OF NANOCRYSTALLINE MATERIALS

金属纳米块体材料具有独特的力学性能，如高强度、超高延展性等，近年来得到了广泛深入的研究在对其新进展进行简要评述的基础上，讨论了它的强度、塑性、弹性模量、应变强化、超塑性。

The bulk nanocrystalline (nc) metals are expected to have unique mechanical properties, such as high strength and more ductility. Extensive investigations in recent years. have been done on this field. The currellt status of research and development on the mechanical properties of nc metals has been summered in this article, including strength, ductility, elasticity coefficient, strain hardening effect, superperplasticity creep and the deformation mechanism.