| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: ICME Gap Analysis
|
| Presentation Title |
Utilization of Non-metallic Inclusion and Optimization of Alloy Compositions for AM Process |
| Author(s) |
Jung-Wook Cho, In-Ho Jung |
| On-Site Speaker (Planned) |
In-Ho Jung |
| Abstract Scope |
Non-metallic inclusions (NMI) have been utilized as nucleation sites in solidification of steel and precipitates to improve the strength of steel. However, NMI have not been actively studied in the additive manufracturing (AM) process for alloys. As liquid alloy temperature can be easily raised above 2000 K, the behavior of NMI can be highly differently from the convention process. Accurate thermodynamic and kinetic understanding of chemical reactions between liquid alloys and gas species such as oxygen, nitrogen and sulfur at high temperatures is essential for active controls of the inclusions and their utilization in AM process. In this presentation, beneficial effects of NMI for the mechanical properties of stainless steel products by AM process will be demonstrated. The key concept for the optimization of AM alloy composition to utilize NMI will be introduced, and the current limitation of our knowledge to realize this concept will be overviewed. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |