Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 49 |
| Fachzeitschrift | npj Materials Degradation |
| Jahrgang | 8 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 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.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Chemie (insg.)
- Chemie (sonstige)
- Werkstoffwissenschaften (insg.)
- Werkstoffwissenschaften (sonstige)
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: npj Materials Degradation, Jahrgang 8, Nr. 1, 49, 08.05.2024.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion
AU - Wackenrohr, Steffen
AU - Torrent, Christof Johannes Jaime
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
PY - 2024/5/8
Y1 - 2024/5/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85192355644&partnerID=8YFLogxK
U2 - 10.1038/s41529-024-00470-w
DO - 10.1038/s41529-024-00470-w
M3 - Article
AN - SCOPUS:85192355644
VL - 8
JO - npj Materials Degradation
JF - npj Materials Degradation
IS - 1
M1 - 49
ER -