About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Ejecta and Melting Produced by High Velocity Impact of Steel Microparticles |
Author(s) |
Jasper Z. Lienhard, David Veysset, Keith Nelson, Christopher Schuh |
On-Site Speaker (Planned) |
Jasper Z. Lienhard |
Abstract Scope |
Microparticles impacting metal substrates at supersonic velocity can cause a wide range of interesting ultra-high strain rate behavior, including impact-induced melting and rapid ejection of solid material from the impacted target. By using a laser system that can launch single metal microparticles to high speeds and a synchronized nanosecond-resolution imaging system, our recent experiments have enabled in situ observations of metal microparticle impacts at velocities in the range of 100 to 1500 m/s. By impacting relatively strong, rigid stainless steel particles on a softer metal target such as tin, we are able to isolate plastic deformation to the impacted target, enabling direct measurement of melt volumes and ejecta cloud volumes produced upon impact across a wide range of velocities. These experiments have revealed new details on the physics of impact cratering and the hardness properties of metals at strain rates as high as 10^8 s^-1. |
Proceedings Inclusion? |
Planned: |