About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Additive Manufacturing and Intermediate-rate Mechanical Response of High Performance Steel |
Author(s) |
Bernard Gaskey, Nick Hopkins, Richard Harris, Philip Flater |
On-Site Speaker (Planned) |
Bernard Gaskey |
Abstract Scope |
Additive manufacturing (AM) promises to revolutionize engineering design by enabling geometries and structures that that were previously impossible to produce. However, much of the current literature on metal AM is concentrated on a select few alloys. Due to the dynamic thermal environment during printing, AM parts often require heat treatment to optimize their microstructure or mechanical performance.
We address both of these current shortcomings by focusing on a high-performance, low alloy martensitic steel in the as-printed condition. We show that with optimized manufacturing process parameters, it is possible to print a microstructurally complex alloy with mechanical performance approaching wrought material without the traditional multistep heat treatment process. Split-Hopkinson pressure bar measurements show that the excellent as-printed properties are retained under dynamic loading conditions, making this type of 3D printed steel a candidate for many new structural applications with combined quasi-static and dynamic loads.
APPROVED FOR PUBLIC RELEASE.
#AFRL-2021-1951 |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, Additive Manufacturing |