| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Liquid Metal Dealloying of Additively Manufactured Materials |
| Author(s) |
Catherine Barrie, Kourtney Porsch, Michael Brupbacher, Kevin Hemker |
| On-Site Speaker (Planned) |
Catherine Barrie |
| Abstract Scope |
Liquid metal dealloying (LMD) has emerged as a method of producing nano-porous materials, expanding the compositional limits of traditional dealloying techniques which rely on difference in chemical inertness or electrochemical potential of alloy constituents. This study aims to combine LMD with additively manufactured (AM) structures to create materials with hierarchical architectures and functional surfaces. A niobium-titanium alloy, amenable to LMD, was printed via laser powder bed fusion (L-PBF). This alloy was chosen for direct comparison of LMD of conventionally manufactured and L-PBF substrates. Both as-printed and heat-treated parts were dealloyed for varying times. The effects of the starting microstructure and other surface features, such as roughness inherent to AM parts and the recast layer from electrical discharge machining, on the dealloying character and depth were also observed. Understanding the effect of these variables and underlying geometry introduced by AM is crucial in developing new processing methods of unique functional materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Surface Modification and Coatings, Characterization |