About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
L-11: An Innovative Instrument Determines Chemistry at the Scale of 3D Printing |
Author(s) |
Jonathan C Putman, Ellen Williams, Peyton Willis |
On-Site Speaker (Planned) |
Jonathan C Putman |
Abstract Scope |
This work demonstrates a new technology for chemical characterization and elemental mapping of metal materials, Laser Ablation Laser Ionization Time of Flight Mass Spectrometry (LALI-TOF-MS). The capabilities of LALI-TOF-MS were explored on a set of additive manufacturing powders and printed parts with an objective of identifying chemical heterogeneity for quality control. The system combines a dual-laser ionization source (LALI) with a TOF mass analyzer to directly analyze solid materials and generate a full mass spectrum at each laser shot. In this project, samples were analyzed using several raster areas ranging from 0.1mm^2 to 10mm^2 each and a laser spot size ranging from 15 to 150 microns. The resulting chemical maps revealed local chemistry variations, demonstrating the potential of LALI-TOF-MS for identifying heterogeneity in additive manufacturing feedstock and final parts. This capability is especially impactful for verifying final part consistency when printing recycled powders. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Additive Manufacturing, Titanium |