| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
Additive Manufacturing of Titanium/Diamond Metal Matrix Composites |
| Author(s) |
Cherry Chen, Robert Wilson, Geoff de Looze, Kun Yang |
| On-Site Speaker (Planned) |
Robert Wilson |
| Abstract Scope |
Titanium and its alloys with high strength-to-weight ratio, are widely used in space infrastructures, aircrafts, automotive and biomedical applications. The relatively low thermal conductivity (7.07 W/m·K) and wear resistance of titanium hinders its application in space propulsion system and power applications, which require both high thermal conductivity and high strength. Diamond is an excellent heat dissipation material, with thermal conductivity up to 2000 W/m·K. In this study, LENS™ directed energy deposition was used for the first time to 3D print titanium/diamond metal matrix composites with different diamond loading fractions by individually controlled powder feeding systems. The processing parameters were adjusted to achieve a high diamond loading up to 50 wt.%. The density, porosity, microstructure, thermal and mechanical properties of the composites were studied. A significant improvement of thermal conductivity and a bone matched modulus of the composites were achieved, showing a high potential in space and biomedical applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Titanium, Mechanical Properties |