|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Metal-Matrix Composites: Advances in Processing, Characterization, Performance and Analysis
|An Investigation of Mechanical Properties of Additively Manufactured Regolith Reinforced Titanium Alloy [Ti6Al4V]
|Ali Afrouzian, Kellen David Traxel, Amit Bandyopadhyay
|On-Site Speaker (Planned)
Developing human habitation on extraterrestrial sites such as Moon and Mars has been scientists' dream for many years. Establishing such an outpost requires the development of in situ fabrication and characterization of various constructions and resources for reliable performance and developing repair methods and continued operation of components sent to the surface. The surface of Mars is covered with heterogeneous soil-like rock termed regolith. The processability of this regolith into a strong yet stable structure needs to be addressed. To this end, additive manufacturing (AM) is considered a promising approach to making such structures with improved properties. In this study, we have utilized the directed energy deposition (DED) technique to fabricate premixed Martian Regolith (MR) and Ti6Al4V (Ti64). AM processed samples were tested for hardness and microstructures to understand the processing-structure-property relationship. While the hardness profile shows an increase from 171.5 ± 1.5 MPa in the substrate to 924.7 ± 38 MPa in the pure deposition of Martian regolith, the microstructure reveals there are different crack and void zones in the 10 wt% addition of Martian rock to the Ti64 base powder. Our results show promise for developing hard coating fabrication technologies on the Martian surface.