About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture
|
| Presentation Title |
Microstructure and Mechanical Control of Metal AM for Critical Applications |
| Author(s) |
Nik Hrabe, Jake Benzing, Ward Johnson, Nicholas Derimow, Newell Moser, Orion Kafka |
| On-Site Speaker (Planned) |
Nik Hrabe |
| Abstract Scope |
This talk will provide an overview of the last five years of the NIST additive manufacturing (AM) fatigue and fracture project, which endeavors to enable confident use of metal AM in critical applications through reducing material variability, improving performance, reducing qualification cost, developing appropriate part inspection techniques, and developing necessary standards. Highlights include: (1) development of new post-process powder recovery blasting control technique for AM titanium that led to 30x improvement in fatigue lifetime, (2) development of a powder reuse quarantining method for AM titanium that led to 15% lower part-to-part strength variability and standard ASTM F3592, (3) development of a new process-based technique to control crystallographic texture for AM titanium, leading to 40% improvement in fracture toughness and standard ISO/ASTM 52911-3, and (4) development of a new post-process heat treatment for AM titanium leading to 100x improvement in fatigue lifetime and revision of standard AMS 7028. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, |