| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Performance Steels
|
| Presentation Title |
Ultra-high Strength Steel for Defense Applications |
| Author(s) |
Katelyn M. Adkison, Stephane A. J. Forsik, Daniel Roup, Colleen M. Tomasello |
| On-Site Speaker (Planned) |
Katelyn M. Adkison |
| Abstract Scope |
AerMetŪ alloys are a family of high Co-Ni secondary-hardening steels designed as a tougher replacement for 300M in defense applications. AerMet 100, 310 and 340 combine a Fe-Ni-Co lath martensite matrix and reverted austenite with fine M2C carbides to generate up to 2340 MPa (340 ksi) UTS and 38 MPa √m KIC toughness. AerMet 360, the newest addition to the family, contains more Co to further refine the martensitic matrix with a higher carbon level and Mo/Cr ratio for added precipitation strengthening. In peak hardened condition, the UTS reaches 2480 MPa (360 ksi) with 22 MPa √m KIC toughness. The relationships between structure, processing, and properties that give this family of material its unique performance will be discussed in this presentation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Characterization, Mechanical Properties |