(1. 华中科技大学 材料成形与模具技术国家重点实验室，武汉 430074；
2. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙 410082)
摘 要: 非晶合金因其独特的内部结构，具有优异的力学性能。例如：高强度、高硬度、大弹性极限等，是一种先进的结构工程材料。材料的冲击韧性能够反映材料内部的细微缺陷和抗冲击性能，是材料强度和塑性的综合表征，是一种重要的力学指标。本文对非晶合金冲击韧性研究现状进行综述，介绍试样尺寸、服役温度、合金成分、热处理等因素对非晶合金冲击韧性的影响，总结了改善非晶合金冲击韧性的措施，并对今后非晶合金冲击韧性研究值得关注的问题进行展望。
关键字: 非晶合金；冲击韧性；韧脆转变；尺寸效应；非晶复合材料
（1. State Key Laboratory of Materials Progress and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China;
2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China）
Abstract:Due to their unique amorphous structure, the metallic glasses possess excellent mechanical properties (e.g. high strength, high hardness, large elastic limit, etc.), which make them potential candidates as advanced structural engineering materials. The impact toughness, which is one of the most important mechanical property indexes and reflects the impact resistance of materials, should be paid attention to during the service process. In this article, the research progress of impact toughness of metallic glasses was reviewed. The effects of sample size, service temperature, alloy composition and heat treatment on impact toughness of metallic glasses were introduced. The strategies to improve the impact toughness of metallic glasses were also presented. Finally the future research issues of impact toughness of metallic glasses were prospected.
Key words: metallic glasses; impact toughness; ductile to brittle transition; size effect; metallic glasses composites
