| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure and Dynamics of Metallic Glasses
|
| Presentation Title |
Structure-Processing-Property Relationships in Refractory Metallic Glass Powders for Additive Manufacturing |
| Author(s) |
Jerry R. Howard, Forest Thompson, Dev Chidambaram, Grant Crawford, Krista Carlson |
| On-Site Speaker (Planned) |
Jerry R. Howard |
| Abstract Scope |
Additive manufacturing (AM) is a promising route for producing bulk metallic glasses (MGs) even with relatively-poor glass forming alloys. In development of new alloys for AM, it is desirable to assess the relevant properties of the material with small amounts of feedstock, which can often be expensive and difficult to produce. In this study, Ta-based MG and MG-matrix composite powders were produced via gas atomization. The phase-structure and thermal properties of the powders were characterized using XRD, DSC, and in-situ heating TEM. The mechanical properties of the powder were assessed directly via nanoindentation using specialized mounting and testing procedures. Small amounts of the powder were laser-melted under conditions designed to mimic an idealized AM scenario and characterized similarly to the feedstock. Using the procedures developed in this study, the suitability of a MG feedstock for AM and for relevant applications can be assessed without producing large amounts of material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |