About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
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Presentation Title |
Microstructure-sensitive Evaluation of the Cyclic Behavior of Additively Manufactured Metals
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Author(s) |
Emine Tekerek, Brian Wisner, Antonios Kontsos |
On-Site Speaker (Planned) |
Emine Tekerek |
Abstract Scope |
Progress in metal additive manufacturing (AM) methods enables the production of novel metallic parts. The resulting metals are dependent on the input material, manufacturing processing methods, and post-manufacturing treatments. Both the microstructure and mechanical properties of AM-produced metals differ from those achieved using traditional manufacturing methods. Consequently, the need to link the microstructures from AM methods with the mechanical response presents an important qualifying step towards the acceptance of such materials in engineering applications. The cyclic behavior of AM manufactured Ti-6Al-4V and AlSi10Mg specimens is studied using microstructure-sensitive nondestructive evaluation methods coupled with in-situ mechanical testing and Electron Back Scatter Diffraction measurements. Further, pre- and post-test X-ray micro-computer tomography and surface profilometry were used to characterize porosity levels and surface roughness. The combination of these methods revealed the role of microstructural characteristics on the initiation and development of localized cyclic damage which was related to the manufacturing and processing parameters. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |