Bulk metallic glasses (BMGs) being metallic materials without long-range order have attracted a considerable amount of interest from academia and industry in the past three decades due to their unique and outstanding properties. However, the manufacturing of glassy components with large dimension and complex geometries has remained a considerable challenge. The main obstructions in this regard arise from the oftentimes limited glass-forming ability (GFA) of most metallic systems, which requires extremely fast quenching of the corresponding melts and, consequently, limits the obtainable dimensions. In addition, BMGs generally have a poor machinability due to their intrinsic high hardness and extreme brittleness. The emerging 3D printing technology (also called additive manufacturing), as an advanced bottom-up manufacturing process, seems to be a viable route to circumvent these deficiencies inherent to conventional processing routes. Additive manufacturing theoretically allows the fabrication of large-sized BMGs and components with complex geometries, greatly extending the range of applications of BMGs as both structural and functional materials. The 3D printing technology has given fresh impetus to the field of BMGs and represents an approach, which is intensely explored in the BMG’s scientific community at the moment. In this review, we present a comprehensive overview of the state-of-the-art research on various aspects related to 3D printing of BMGs. It covers various 3D printing techniques for manufacturing BMGs, the microstructures (e.g. structural heterogeneities and fused-related defects) found in 3D-printed BMGs, the crystallization behavior in additively manufactured glasses and the associated alloy selection criterion, the observed mechanical properties and deformation mechanisms, and finally the functional properties and potential applications of 3D-printed BMGs and BMG matrix composites, in terms of catalysis, wear, corrosion, and biocompatibility. This article also identifies a number of key questions to be answered in the future in this important research direction in order to successfully bridge the gap from fundamental research to large-scale application of additively manufactured bulk metallic glasses.

块状金属玻璃（BMGs）是一种没有长程有序的金属材料，由于其独特而卓越的性能，在过去的三十年里引起了学术界和工业界的极大兴趣。然而，制造具有大尺寸和复杂几何形状的玻璃部件仍然是一个相当大的挑战。在这方面的主要障碍来自大多数金属系统通常有限的玻璃形成能力 (GFA)，这需要相应熔体的极快淬火，因此限制了可获得的尺寸。此外，BMGs 由于其固有的高硬度和极度脆性，通常具有较差的可加工性。新兴的 3D 打印技术（也称为增材制造），作为一种先进的自下而上的制造工艺，似乎是规避这些传统加工路线固有缺陷的可行途径。增材制造理论上允许制造具有复杂几何形状的大型 BMG 和组件，大大扩展了 BMG 作为结构和功能材料的应用范围。3D打印技术为BMGs领域注入了新的动力，代表了一种方法，目前正在BMG科学界进行深入探索。在这篇综述中，我们全面概述了与 BMG 3D 打印相关的各个方面的最新研究。它涵盖了用于制造 BMG 的各种 3D 打印技术、3D 打印 BMG 中发现的微观结构（例如结构异质性和熔合相关缺陷），增材制造玻璃的结晶行为和相关的合金选择标准，观察到的机械性能和变形机制，最后是 3D 打印 BMG 和 BMG 基复合材料的功能特性和潜在应用，在催化、磨损、腐蚀和生物相容性。本文还确定了未来在这一重要研究方向上需要回答的一些关键问题，以成功弥合增材制造块状金属玻璃从基础研究到大规模应用的差距。在催化、磨损、腐蚀和生物相容性方面。本文还确定了未来在这一重要研究方向上需要回答的一些关键问题，以成功弥合增材制造块状金属玻璃从基础研究到大规模应用的差距。在催化、磨损、腐蚀和生物相容性方面。本文还确定了未来在这一重要研究方向上需要回答的一些关键问题，以成功弥合增材制造块状金属玻璃从基础研究到大规模应用的差距。