| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Understanding the Processing-Composition-Microstructure-Properties Relation of the Ti-xCo-yB System Created via Powder Bed Additive Manufacturing |
| Author(s) |
Jonathan T. Zaugg, Maria J Quintana, Peter C. Collins |
| On-Site Speaker (Planned) |
Jonathan T. Zaugg |
| Abstract Scope |
Powder bed fusion additive manufacturing has the flexibility to create samples of any composition by meticulously blending elemental powders. Cobalt additions to titanium increase the elastic modulus, with C11 increasing by 72%at 50-50at%. For additive manufacturing, staying under 38wt%Co avoids the formation of the TiCo intermetallic, which can cause cracking. Boron additions to titanium reduce the grain size by enhancing the nucleation rate, decreasing the grain size, and thus having a strengthening effect. When adding past 0.06wt%B the growth of nuclei slows too, with diminishing effects past 0.25wt%B. Studying the Ti-xCo-yB system (0<x<38wt%, 0<y<0.25wt%) is advantageous as the elasticity and plasticity can be changed semi-independently, leading to a highly tunable system. Grain size and porosity of AM samples of the Ti-Co-B system will be characterized using electron microscopy, and the different mechanical properties will be assessed with different techniques to establish the processing-composition-microstructure-properties relationship of the Ti-xCo-yB system. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Additive Manufacturing, Mechanical Properties |