Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion

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OriginalspracheEnglisch
Aufsatznummer49
Fachzeitschriftnpj Materials Degradation
Jahrgang8
Ausgabenummer1
PublikationsstatusVeröffentlicht - 8 Mai 2024

Abstract

Due to its excellent biocompatibility, pure iron is a very promising implant material, but often features corrosion rates that are too low. Using additive manufacturing and modified powders the microstructure and, thus, the material properties, e.g., the corrosion properties, can be tailored for specific applications. Within the scope of this study, pure iron powder was modified with different amounts of CeO2 or Fe2O3 nanoparticles and subsequently processed by Electron Beam Powder Bed Fusion (PBF-EB/M). The corrosion-fatigue behavior of CeO2 and Fe2O3 modified iron was investigated using rotation bending tests under the influence of simulated body fluid (m-SBF). While the modification using Fe2O3 showed reduced fatigue and corrosion-fatigue strengths, it could be demonstrated that the modification with CeO2 is characterized by improved fatigue properties. The superior fatigue properties in air are attributed to the positive impact of dispersion strengthening. Additionally, an increased degradation rate compared to pure iron could be observed, eventually promoting an earlier failure of the specimens in the corrosion fatigue tests.

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Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. / Wackenrohr, Steffen; Torrent, Christof Johannes Jaime; Herbst, Sebastian et al.
in: npj Materials Degradation, Jahrgang 8, Nr. 1, 49, 08.05.2024.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Wackenrohr, S, Torrent, CJJ, Herbst, S, Nürnberger, F, Krooss, P, Frenck, JM, Ebbert, C, Voigt, M, Grundmeier, G, Niendorf, T & Maier, HJ 2024, 'Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion', npj Materials Degradation, Jg. 8, Nr. 1, 49. https://doi.org/10.1038/s41529-024-00470-w
Wackenrohr, S., Torrent, C. J. J., Herbst, S., Nürnberger, F., Krooss, P., Frenck, J. M., Ebbert, C., Voigt, M., Grundmeier, G., Niendorf, T., & Maier, H. J. (2024). Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. npj Materials Degradation, 8(1), Artikel 49. https://doi.org/10.1038/s41529-024-00470-w
Wackenrohr S, Torrent CJJ, Herbst S, Nürnberger F, Krooss P, Frenck JM et al. Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. npj Materials Degradation. 2024 Mai 8;8(1):49. doi: 10.1038/s41529-024-00470-w
Wackenrohr, Steffen ; Torrent, Christof Johannes Jaime ; Herbst, Sebastian et al. / Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. in: npj Materials Degradation. 2024 ; Jahrgang 8, Nr. 1.
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AU - Herbst, Sebastian

AU - Nürnberger, Florian

AU - Krooss, Philipp

AU - Frenck, Johanna Maria

AU - Ebbert, Christoph

AU - Voigt, Markus

AU - Grundmeier, Guido

AU - Niendorf, Thomas

AU - Maier, Hans Jürgen

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