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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pilz, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Effects of Remelting on the Properties of a Superelastic Cu–Al–Mn Shape Memory Alloy Fabricated by Laser Powder Bed Fusioncitations
- 2023Tailoring the superelastic properties of an additively manufactured Cu–Al–Mn shape memory alloy via adjusting the scanning strategycitations
- 2022Tailoring the Superelastic Properties of an Additively Manufactured Cu-Al-Mn Shape Memory Alloy Via Adjusting the Scanning Strategy
- 2022Influence of isothermal omega precipitation aging on deformation mechanisms and mechanical properties of a β-type Ti-Nb alloy
- 2022Cell-Material Interactions in Direct Contact Culture of Endothelial Cells on Biodegradable Iron-Based Stents Fabricated by Laser Powder Bed Fusion and Impact of Ion Releasecitations
- 2021Effect of build orientation on the microstructure, mechanical and corrosion properties of a biodegradable high manganese steel processed by laser powder bed fusioncitations
- 2020Studies on Stress Corrosion Cracking of Vit 105 Bulk Metallic Glass
- 2019Influence of annealing on microstructure and mechanical properties of ultrafine-grained Ti45Nbcitations
- 2018Thermomechanical processing of In-containing β-type Ti-Nb alloyscitations
- 2018S and B microalloying of biodegradable Fe-30Mn-1C - Effects on microstructure, tensile properties, in vitro degradation and cytotoxicitycitations
- 2018Metal release and cell biological compatibility of beta-type Ti-40Nb containing indiumcitations
- 2017Effect of thermomechanical processing on the mechanical biofunctionality of a low modulus Ti-40Nb alloycitations
- 2017Powder metallurgical processing of low modulus ß-type Ti-45Nb to bulk and macro-porous compactscitations
Places of action
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article
S and B microalloying of biodegradable Fe-30Mn-1C - Effects on microstructure, tensile properties, in vitro degradation and cytotoxicity
Abstract
<p>Austenitic Fe-Mn-C-based alloys are considered as promising candidates for biodegradable vascular implants due to their high strength, ductility and mechanical integrity during degradation. The present study demonstrates that microalloying with S and B is an effective method to further enhance the degradation rate and the mechanical properties of a Fe-30Mn-1C twinning-induced plasticity (TWIP) alloy without deteriorating the biocompatibility. For studying the microstructural changes due to S or B addition, the alloys were analysed by X-ray diffraction (XRD) as well as scanning electron microscopy (SEM) in combination with energy-dispersive X-ray spectroscopy (EDX), wavelength dispersive X-ray analysis (WDX) and electron backscatter diffraction (EBSD). Thereby precipitates of (Fe<sub>0.3</sub>Mn<sub>0.7</sub>)S and (Fe,Mn)<sub>23</sub>(C<sub>3</sub>B<sub>3</sub>) types were detected in the austenitic matrix. These precipitates have a distinct influence not only on the mechanical properties under tensile load but also on the occurring corrosion mechanism. This was displayed by potentiodynamic polarization measurements and immersion tests in simulated body fluid (SBF) and associated SEM as well as X-ray photoelectron spectroscopy (XPS) investigations. In vitro cytotoxicity analyses with L929 fibroblast cells indicated that microalloying with S and B does not affect the cytocompatibility. Thus, the novel alloy modifications show a high potential for future application as biodegradable implant material.</p>