| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Rapid Qualification
|
| Presentation Title |
Characterizing the Relationship between Microstructure and Mechanical Properties of Wire Arc Additively Manufactured 316LSi Samples in As-Deposited and Forged Conditions |
| Author(s) |
Brett E. Ley, Vishnu Ramasamy, John J Lewandowski, Jennifer L.W. Carter, Glenn Daehn, Zhigang Xu, Bradley Jared, Kornel Ehmann |
| On-Site Speaker (Planned) |
Brett E. Ley |
| Abstract Scope |
Wire Arc Additive Manufacturing (WAAM) is a near net shape solution for printing large-scale metal components. Four distinct thick wall deposits of 316LSi stainless were printed using WAAM where the heat input and interpass temperature were systematically varied. From each thick wall deposit, several tension and fatigue crack growth (FCG) samples were machined along the x, y, and z directions and tested. The as-deposited microstructures and fracture surfaces were examined from three orientations. Characterization techniques included optical metallography for the microstructure and a combination of SEM and optical profilometry for the fracture surfaces. The effect of WAAM print conditions on the microstructural and FCG characteristics will be summarized. As-deposited materials were machined into a double cone geometry and forged to examine the effects of novel post-processing on the microstructures. Mechanical properties including hardness, notch toughness, and tensile strength of forged samples were also determined. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Iron and Steel |