| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale V
|
| Presentation Title |
The Effects of Supersonic Impacts on the Micromechanical Properties of Al6061 Cold Spray Deposits |
| Author(s) |
Tyler Flanagan, Benjamin A Bedard, Avinash M Dongare, Harold D Brody, Aaron Nardi, Victor K Champagne, Seok-Woo Lee |
| On-Site Speaker (Planned) |
Tyler Flanagan |
| Abstract Scope |
The mechanical characterization of supersonic impacted metallic microparticles is of great interest as their unusual microstructure leads to unique deformation mechanisms, which relates to the mechanical properties of bulk cold sprayed coating. Here, we present micro-compression/tension results performed on cold-sprayed Al-6061 multi-deposit coatings. The individual particles which comprise the coatings contain two microstructural distinct regions; the centers of the particles which are comprised of an equiaxed grain structure and a squashed grain structure at the particle boundaries which undergoes significant deformation and recrystallization. The variance in mechanical properties of these two regions as a function of their microstructures will be discussed in terms of grain refinement and grain boundary orientation. The influence of additional impacts on the mechanical properties of particles will also be compared with that of single particle impacts. Our study will give an insight in fundamental understanding on the effects of high strain rate deformation. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |