学术报告：Additive manufacturing of metallic glasses: challenges and opportunities
报告摘要：Bulk metallic glasses (BMGs) are important multi-component alloys with novel microstructures and unique physical and chemical properties which make them promising for applications in many industries, e.g., aerospace, energy, healthcare and etc. However, certain hindrances have been identified in the fabrication of BMGs by conventional techniques due to the intrinsic requirements of BMGs. With the advent of metal additive manufacturing such as laser powder-bed fusion (LPBF) techniques, new opportunities have been perceived to fabricate geometrically complex BMGs with tailorable microstructure theoretically at any site within the specimen, which are difficult to achieve using conventional fabrication techniques. After providing some background and introducing the conventional fabrication techniques for various BMGs, this presentation will focus on the current status, development, and challenges in metal additive manufacturing of BMGs including different additive manufacturing techniques being used, microstructure design and evolution, as well as properties of the fabricated BMGs. A few successful and pioneering examples will be given and discussed. A future outlook of metal additive manufacturing of BMGs will also be provided at the end.