About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
L-18: Characterization of Aged and Recycled Metal Powder Feedstocks by LALI-TOF-MS |
Author(s) |
Madeline Martelles, Jonathan C Putman, Peyton Willis |
On-Site Speaker (Planned) |
Madeline Martelles |
Abstract Scope |
As the additive manufacturing industry grows metal powder reuse, which reduces both cost and waste, becomes ever more important. Understanding how chemical processes, such as oxidation, change the elemental/chemical composition of a feedstock is critical to predict a final part’s mechanical and corrosive properties. This project examined several metal powder feedstock materials including virgin, reused, and artificially aged powders. Characterization by laser ablation laser ionization mass spectrometry (LALI-TOF-MS) revealed changes in both total oxygen and oxides detected after aging. Results also compare different types of metal feedstocks, some of which required more aggressive aging strategies before compositional changes were observed. Larger intensities of oxide peaks were observed on the aged powder samples. The varying concentrations of oxygen and oxides gives rise to determining the quality of the powders being used and their mechanical properties in the additive manufacturing process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Powder Materials |