| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
The Effect of Mg Content on the Process-structure Relationships of Cold Spray Deposited Al-Mg Alloys |
| Author(s) |
Gregory W. Kubacki, Lorena Perez-Andrade, Munsu Kim, Luke Brewer |
| On-Site Speaker (Planned) |
Lorena Perez-Andrade |
| Abstract Scope |
This presentation will discuss the effect of Mg content on the microstructure of gas atomized Al-Mg powders and cold spray deposition characteristics. Cold gas dynamic spraying (cold spray) is a solid-state additive manufacturing technology where feedstock powders, below their melting points, are sprayed at high velocities onto a substrate to create a metallurgical bond. Since deposition results in extensive powder deformation, the goal of this study is to investigate how feedstock powder chemistry affects deposition efficiency, deposit porosity, and deposit hardness. AA5083 and Al-Mg binary alloys with 1.7-5 wt% Mg were gas atomized and characterized to determine lattice parameters and the presence of intermetallics. Cold spray deposits were generated and characterized. Mg content was found to affect deposition efficiency and deposit hardness while having no effect on deposit density and interface quality. |