| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering VI
|
| Presentation Title |
Lunar Dust Erosion Behavior of Novel Plasma Sprayed Titanium-Boron Nitride Coatings at Extreme Temperatures |
| Author(s) |
Abhijith Kunneparambil Sukumaran, Cheng Zhang, Sara Rengifo, William Scott, Sang-Hyon Chu, Cheol Park, Arvind Agarwal |
| On-Site Speaker (Planned) |
Abhijith Kunneparambil Sukumaran |
| Abstract Scope |
Spacecraft landings and takeoffs on the lunar surface, along with extreme temperature variations between day and night, cause high-velocity dust erosion, resulting in the premature failure of structures. To protect the structural components, Ti-hBN coatings were deposited using two plasma spray techniques (atmospheric: APS and vacuum: VPS) using powders prepared by cryo-milling. Coating microhardness was found to be 3.0 times that of conventional Ti6Al4V (335 HV) substrate in the case of low vol.% hBN (900 HV) concentration and 1.5 times for high vol.% hBN coating (516 HV). The erosion performance of coatings at extreme lunar temperature regimes (-196 to 150°C) was evaluated in a custom-made planetary erosion test rig (PETR). The mass-loss of VPS Ti-hBN coatings improved by 50 % compared to the APS Ti-hBN coatings and 40 % compared to the Ti6Al4V substrate. The particle impact-deformation behavior was captured using a high-speed camera to deduct the material degradation mechanism |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Surface Modification and Coatings, Environmental Effects, Titanium |