Abstract
Metallic glasses (MGs) and high entropy alloys (HEAs) are both emerging multi-component alloys with unique microstructures and extraordinary properties. However, there are many challenges during the manufacturing process of MGs and HEAs using conventional fabrication techniques which hinders their development as engineering materials. Cold spray as a burgeoning metal deposition and solid-state additive manufacturing technology provides an alternative to allow the fabrication of large-scale MGs and HEAs. This chapter provides an overview of MGs and HEAs deposits fabricated by cold spray additive manufacturing technique. Firstly, the background of MGs and HEAs are briefly introduced. Then, the feedstock powder for spraying and deposit microstructure evolution are provided. Finally, the particle deformation behavior and bonding mechanism are discussed.
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