|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Fatigue and Fracture III
||Why 3D-printing at the Beach is not the Perfect Work-life Balance: Some Observations on Moisture Effects in Metal Powders
||Noah Philips, Nicholas Cunningham
|On-Site Speaker (Planned)
Moisture can have a profound effect on the bulk properties of metal powders particularly the fine powders used in additive manufacturing. The presence of moisture alters inter-particle interactions and consequently impacts (negatively) behavior like spreading and flow. Observed phenomena from AM are experimentally replicated in reactive refractory alloys using rotating drum and powder draw down methods. The geotechnical (soil engineering) literature and Discrete Element Modelling provide a basis for understanding spreading defect formation as well as broader insight into the relative dominance of particle size distribution and absolute moisture content.
||Planned: Supplemental Proceedings volume