About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
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Presentation Title |
Rationalizing process-parameter dependent microstructure evolution of case-hardening steel 16MnCr5 through FEM-based thermal modelling |
Author(s) |
Carina van der Linde, Léa Deillon, Mamzi Afrasiabi, Markus Bambach |
On-Site Speaker (Planned) |
Carina van der Linde |
Abstract Scope |
Laser powder bed fusion (LPBF) allows to fabricate intricate structures with complex geometries and features. The microstructure of steel plays a pivotal role in determining its mechanical properties and can enable distinctive tailored combinations of part properties. However, the microstructure evolution during LPBF depends critically on the thermal history of the process. Hence, insights into the temperature history generated by thermal models are crucial to understand LPBF microstructures. A promising candidate is the case-hardening steel 16MnCr5, which is known to form varying proportions of bainite, martensite and ferrite depending on the temperature path. Against this background, this contribution rationalizes the microstructure evolution of 16MnCr5 resulting from varying LPBF process parameters by means of a Finite Element Method (FEM) thermal model, which was validated based on in-situ temperature measurements. The goal of our research is to determine the required LPBF process parameters leading to the respectively targeted microstructure of 16MnCr5. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Phase Transformations, Iron and Steel |