About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing: Process-induced Microstructures and Defects
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Presentation Title |
F-54: Room and Cryogenic Mechanical Properties and Microstructure of Additively Manufactured CrNiMn Steels |
Author(s) |
JunYoung Park, BeomJun Kim, Junggi Kim |
On-Site Speaker (Planned) |
JunYoung Park |
Abstract Scope |
Additive manufacturing (AM) with 3XX austenitic stainless steel has been during a decade due to its high strength, good corrosion resistance and fair weldability. However, because of the stainless steel price increment from a high demand of Ni, the replacement of Ni with Mn is required to relieve this issue. Meanwhile, the chemical composition differences affect not only properties (e.g. mechanical and microstructural properties) of newly developed Fe-Cr-Ni-Mn steels but also the processing parameters. Therefore, it is necessary to optimize the process parameters of each alloy for obtaining high-quality product using AM. After processing optimization, in this study, mechanical properties of AM Fe-Cr-Ni-Mn steels were evaluated in both room (298 K) and cryogenic (77 K) temperatures. Since the temperature reduction affects to the deformation mechanism transition, multi-scale microstructural characterization was conducted to reveal the deformed microstructure of each sample. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Phase Transformations |