|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Applications of Solidification Fundamentals
||In-situ X-ray Imaging of Multi-material Directed Energy Deposition
||Sarah J. Wolff, Benjamin Gould, Aaron Greco, Tao Sun
|On-Site Speaker (Planned)
||Sarah J. Wolff
Multi-material additive manufacturing is promising for its feasibility in the synthesis of functionally graded alloys, high entropy alloys, and metal matrix composites. However, depositing multiple materials in the directed energy deposition additive manufacturing process presents challenges during processing including interface chemistry, miscibility in the melt pool, and the formation of intermetallic phases. In-situ X-ray imaging at the Advanced Photon Source, Argonne National Laboratory reveals how powder flow influences a fluctuating melt pool, melting of multiple materials in real time, and how deposited powders stir within the melt pool. The hope is to further the understanding of multi-material additive manufacturing by characterizing the flow and mixing of various powder materials.