| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
A-61: Exploring Rapid Solidification in Additive Manufacturing through Splat Quenching |
| Author(s) |
Zachary A. Hasenbusch, Sydney Morales, Luke Brewer, Laurentiu Nastac, Andy Deal, Ben Brown |
| On-Site Speaker (Planned) |
Zachary A. Hasenbusch |
| Abstract Scope |
This presentation will discuss the use of splat quenching (SQ) method to simulate rapid solidification conditions present in fusion-based additive processes. Splat quenching experiments produce cooling rates typically between 10^5 and 10^6 °C/s and enable the measurement of fundamental, rapid solidification parameters. This method is being applied to 316 stainless steel and variants with several starting superheat temperatures and corresponding cooling rates. A combination of x-ray spectroscopy and electron backscatter diffraction is used to determine how these very high cooling rates alter the solidification path and key solidification parameters. In particular, changes to the partition coefficients of the alloying elements will be determined. The experimental results will be compared with finite element simulations of heat transfer during the splat quench process. This work was funded by the Department of Energy’s Kansas City National Security Campus which is operated and managed by Honeywell Federal Manufacturing Technologies, LLC under contract number DE-NA0002839. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |