|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||High Performance Steels
||Extreme Strengthening of Ausformed M54 through Ambient Temperature Rolling
||Joshua Edwards, Nicholas Derimow, Jake Benzing, Thomas Kozmel, Jeffrey Lin, Suveen Mathaudhu
|On-Site Speaker (Planned)
Ferrium® M54® is a computationally designed medium-carbon ultra-high-strength steel (UHSS) designed for outstanding strength, toughness, and stress corrosion cracking resistance. A process involving low-percentage rolling reductions, referred to as Skin Pass Rolling (SPR), was investigated to reveal the relationships between processing, microstructure, and mechanical properties. Ambient temperature rolling to various total reductions was performed. Microstructure, feature morphology, and mechanical properties were studied through 60% cold work. Tensile strength was increased to a maximum of 2789 MPa as compared to the direct-quenched state (1916 MPa) and the ausformed + tempered state (2222 MPa). Observations from the study of ambient temperature rolled samples forecast development of highly refined microstructural features with retention of plasticity. This study has allowed us to enhance the mechanical properties of as-hardened UHSS and demonstrate a repeatable path forward for future high-specific-strength steels.
||Iron and Steel, Mechanical Properties, Other