| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: ICME Gap Analysis
|
| Presentation Title |
Making Metal Additive Manufacturing Practical – What’s Missing? |
| Author(s) |
Lyle E. Levine, Carelyn Campbell, Mark Stoudt, Greta Lindwall, Eric Lass, Fan Zhang, Brandon Lane |
| On-Site Speaker (Planned) |
Lyle E. Levine |
| Abstract Scope |
The extreme processing conditions of metal additive manufacturing (AM) create position-specific microstructures with high stresses, extreme compositional gradients, and unexpected phases that complicate component and process design and certification. Many of these challenges stem from the use of existing casting alloys that were never designed for these processing conditions. Early research has largely focused on optimizing post build processing to compensate for unwanted features, but a more proactive approach of modifying existing alloys and developing new alloys using an ICME framework is required. Several efforts are incorporating an ICME approach, but significant gaps remain in our ability to couple simulation approaches and our access to the relevant thermophysical and model validation data. Examples will be taken from our work on AM Ni-based superalloys and martensitic stainless steels. Although a path forward is clear for addressing some of these challenges, others remain elusive. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |