| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Effect of Initial Carbon Content on Tailoring the Mechanical Properties of Additively Manufactured Martensitic Ultra High-strength Steels |
| Author(s) |
Stephanie Pestka, Matthew Vaughan, Sean Gibbons, Philip Flater, Alaa Elwany, Ibrahim Karaman, Raymundo Arryoave |
| On-Site Speaker (Planned) |
Stephanie Pestka |
| Abstract Scope |
Laser powder bed fusion (L-PBF) of a newly developed martensitic ultra high strength steel (UHSS) known as AF96 has received notable attention due to its unique microstructure and superior mechanical properties. The current study investigates the influence of initial alloy carbon content on the mechanical properties of AF96 fabricated via L-PBF. A process parameter development study was first performed to determine optimal processing parameters that result in near defect-free as-printed parts. Test specimens were then fabricated using optimized parameter combinations for mechanical and microstructural characterization. This process was completed for three compositions of AF96 powder containing varying amounts of initial carbon content. Preliminary results show a significant increase in both yield strength and ultimate tensile strength with increasing initial carbon content. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |