About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
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Environmental Degradation of Additively Manufactured Alloys
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Presentation Title |
High Temperature Air Oxidation Behavior of Ni-based Superalloys Processed by Electron Beam Melting (EBM) and Selective Laser Melting (SLM) |
Author(s) |
Marie Romedenne, Rishi Pillai, Sebastien Dryepondt |
On-Site Speaker (Planned) |
Marie Romedenne |
Abstract Scope |
Additive manufacturing (AM) aims to complement or replace conventional and costly machining or production processes. While the current focus is on the evaluation of mechanical properties of as-fabricated or heat-treated materials, the oxidation behavior of AM materials is rarely investigated. The oxidation behavior of three Ni-based superalloys fabricated by EBM or SLM was evaluated and compared with the wrought materials. Thermogravimetric analyses and cyclic exposures up to 950 °C for durations up to 5000 h were performed. Alloy microstructure and powder composition were found to strongly influence oxidation behavior and material degradation processes. |
Proceedings Inclusion? |
Planned: |