| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
Microsegregation Analysis, Modeling, and Correlation to Cracking Behaviors in AM |
| Author(s) |
Timothy E. Prost, Emma M.H. White, Shubhra Jain, Ralph Napolitano, Iver Anderson |
| On-Site Speaker (Planned) |
Timothy E. Prost |
| Abstract Scope |
The extension of additive manufacturing (AM) into new industrial sectors promises enhanced design flexibility and speed but calls for developments in processing and alloy design. While powder-based e-beam processes show great potential, many conventionally cast or wrought alloys exhibit severe cracking during AM processing. The ability to rapidly screen alloy compositions could help accelerate the further adoption of AM to other sectors. The work presented here will encompass a rapid, objective sampling technique that indicates segregation within an arbitrary section of a material and the comparison of this information to calculation and simulation of microsegregation. This comparison is used to correlate what can be seen in real microsegregation patterns with various cracking phenomena, which tend to plague the AM community, and to prescribe alloy development directions for avoiding these issues. This research was performed at Ames Laboratory through contract no. DE-AC02-07CH11358.765 with support from U.S. DOE-EERE-Advanced Manufacturing Office. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |