大块非晶合金的微尺度力学行为研究评述

Review on the Study of Micro-Mechanics Behavior of Bulk Metallic Glass

大块非晶合金因其优异的力学、机械、物理等性能引起学术界和产业界广泛关注,其学术研究和应用领域内容范围正日益扩大和深入。本文简要介绍了大块非晶材料微尺度力学行为研究中的最新进展,内容包括大块非晶纳米压印过程中的锯齿状流变特性、非晶变形过程中的微观结构转变以及非晶断裂的微观机制及尺度效应。

Bulk Metallic Glass （BMG） material is a rapidly developing subject of science and industry for its outstanding mechanical, magnetic and chemical properties. Its influence range and application field are enlarging nowadays. The study on the micro-mechanics behaviors of BMG materials are reviewed in this paper. The emerging research areas in mircro-mechanics behavior of BMG such as serrated plastic flow during nano-indentation, microstructure change and phase transition under certain pressure and/or temperature are discussed. The size effect on the deformation of BMG is also described briefly.