Review of Bulk Metallic Glasses Fabricated by Additive Manufacturing

Abstract:

In recent years, in order to meet the market requirements for bulk metallic glasses (BMGs) with large size and complex geometry, the advanced additive manufacturing technologies (AM) with smart characters (e.g., high flexible forming, excellent performance, less machining and high dimensional accuracy) were successfully applied to different kinds of BMGs. According to reported investigations on BMGs fabricated by AM in the past decades, the present work briefly introduces the progress on bulk metallic glasses and the advanced additive manufacturing of metals, and then systematically elaborate the forming mechanisms and properties of BMGs fabricated by AM. Subsequently, the bottleneck of the additive manufacturing of BMGs was discussed comprehensively. Finally, it is suggested that mastering the relationship of the AM processing, microstructure and properties to achieve the AMed BMGs with high quality and high performance are one of the most important development directions of BMGs fabricated by AM in the future

Key words:additive manufacturing technology; bulk metallic glasses; mechanical performance