Metallic glasses (MGs) are arguably one of the most exciting metallic systems in the past 30 years, attracting significant research effort and undergoing rapid development. Parallel to research on crystalline metals, the sample size has been exploited as property-tuning parameters for MGs. It has been shown that nanometre-sized MG samples exhibit higher-than-bulk elastic limit, tensile strength, and non-zero tensile ductility. While some of the size-related observations have been generally accepted, others have been poorly understood, even hotly debated. Of particular interests is the importance of sample preparation in experiments and model generation in simulations. Here, we will review how the sample size affects mechanical properties including the elastic, plastic, fracture properties, and fatigue endurance, as well as various proposed size-dependent mechanisms and relevant length scales.

中文翻译：

---

金属玻璃的尺寸依赖性机械响应

金属玻璃（MGs）可以说是过去30年来最令人兴奋的金属系统之一，吸引了巨大的研究努力并且正在迅速发展。与对结晶金属的研究并行，样本量已被用作MG的特性调整参数。已经表明，纳米级的MG样品表现出高于整体的弹性极限，拉伸强度和非零拉伸延展性。虽然一些与尺寸有关的观察已被普遍接受，但其他观察则知之甚少，甚至引起了激烈的辩论。特别感兴趣的是在实验中准备样品和在模拟中生成模型的重要性。在这里，我们将回顾样本量如何影响机械性能，包括弹性，塑性，断裂性能和疲劳强度，