| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
Mechanical Properties and Fatigue Performance of a Wire Arc Additive Manufactured ER100S-G Steel for HY-80 Applications |
| Author(s) |
Garrett A Webster, Kathleen Chou, Riyanka Ribble, Ajay Krishnamurthy, Shahab Zekriardehani, Joseph Lawrence, Meysam Haghshenas |
| On-Site Speaker (Planned) |
Meysam Haghshenas |
| Abstract Scope |
HY-80 is a quenched and tempered high-strength low-alloy steel with fine-grained bainite and martensite microstructure along with great formability, weldability, and corrosion resistance. Considering various limitations associated with conventional fabrication of large-size structures out of HY-80, this study assesses large format additive manufacturing (e.g., wire arc additive manufacturing) using high strength low alloy wire feedstock (AWS ER100S-G) to potentially be a replacement for conventional manufacturing (e.g., casting/forging). To this end, this research provides microstructure/mechanical property/fatigue performance/process (i.e., WAAM) correlation of the studied ER100S-G steel. The microstructure (optical and scanning electron microscopies), mechanical properties (tensile tests, hardness distribution measurements), and fully-reversed (R= -1) fatigue performance (S-N data) of a wire arc additive manufactured ER100S-G steel are quantified. Also, to quantify the controlling mechanism of fatigue crack initiation (e.g., WAAM-produced defects) and fatigue crack growth pattern, extensive scanning electron microscopy-based fractography assessments was conducted on the fracture surface of the broken specimens. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Iron and Steel |