Details
| Original language | English |
|---|---|
| Article number | 18 |
| Journal | npj Materials Degradation |
| Volume | 6 |
| Issue number | 1 |
| Publication status | Published - 8 Mar 2022 |
Abstract
Pure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms.
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Materials Chemistry
- Materials Science(all)
- Materials Science (miscellaneous)
- Chemistry(all)
- Chemistry (miscellaneous)
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In: npj Materials Degradation, Vol. 6, No. 1, 18, 08.03.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Corrosion fatigue behavior of electron beam melted iron in simulated body fluid
AU - Wackenrohr, Steffen
AU - Torrent, Christof Johannes Jaime
AU - Herbst, Sebastian
AU - Nürnberger, Florian
AU - Krooss, Philipp
AU - Ebbert, Christoph
AU - Voigt, Markus
AU - Grundmeier, Guido
AU - Niendorf, Thomas
AU - Maier, Hans Jürgen
N1 - Funding Information: The authors thank the German Research Foundation (DFG) for the financial support of this study within the project “Einstellung von Mikrostruktur und Degradationsverhalten oxidpartikel-modifizierter Fe-Legierungen durch selektives Elektronenstrahlschmelzen“, grant number 413259151.
PY - 2022/3/8
Y1 - 2022/3/8
N2 - Pure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms.
AB - Pure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms.
UR - http://www.scopus.com/inward/record.url?scp=85126190219&partnerID=8YFLogxK
U2 - 10.1038/s41529-022-00226-4
DO - 10.1038/s41529-022-00226-4
M3 - Article
AN - SCOPUS:85126190219
VL - 6
JO - npj Materials Degradation
JF - npj Materials Degradation
IS - 1
M1 - 18
ER -