Details
| Original language | English |
|---|---|
| Journal | Journal of Materials Research |
| Publication status | E-pub ahead of print - 2025 |
Abstract
This study presents the experimental assessment of the corrosion performance of CoCrAlSi alloy in simulated body fluid (SBF) to evaluate its biocorrosion response and potential as an orthopedic implant material. Specifically, the alloy's microstructure was investigated to reveal the elemental segregations and severe segregation zones were identified and analyzed. Static immersion experiments were carried out in SBF in an electronically controlled water bath to examine the ion release behavior of the alloy. The compositions of the surface oxide layers forming upon static immersion were investigated using X-ray photoelectron spectroscopy. Then, potentiodynamic polarization experiments were performed in SBF at 37 °C, which showed that the alloy exhibited a transpassive dissolution behavior, constantly releasing toxic metallic ions. This warrants further elaboration to control the aforementioned ion release mechanism by optimizing the microstructure of CoCrAlSi alloy to evaluate its usability as a potential orthopedic implant.
Keywords
- Corrosion, Metal, Passivation, Shape memory, X-ray photoelectron spectroscopy (XPS)
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Materials Research, 2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A preliminary assessment of the corrosion behavior of CoCrAlSi alloy as a potential orthopedic implant material
AU - Ozdemir, Huseyin Can
AU - Blank, Tatiana
AU - Gerstein, Gregory
AU - Canadinc, Demircan
AU - Maier, Hans Jürgen
N1 - Publisher Copyright: © The Author(s), under exclusive licence to The Materials Research Society 2025.
PY - 2025
Y1 - 2025
N2 - This study presents the experimental assessment of the corrosion performance of CoCrAlSi alloy in simulated body fluid (SBF) to evaluate its biocorrosion response and potential as an orthopedic implant material. Specifically, the alloy's microstructure was investigated to reveal the elemental segregations and severe segregation zones were identified and analyzed. Static immersion experiments were carried out in SBF in an electronically controlled water bath to examine the ion release behavior of the alloy. The compositions of the surface oxide layers forming upon static immersion were investigated using X-ray photoelectron spectroscopy. Then, potentiodynamic polarization experiments were performed in SBF at 37 °C, which showed that the alloy exhibited a transpassive dissolution behavior, constantly releasing toxic metallic ions. This warrants further elaboration to control the aforementioned ion release mechanism by optimizing the microstructure of CoCrAlSi alloy to evaluate its usability as a potential orthopedic implant.
AB - This study presents the experimental assessment of the corrosion performance of CoCrAlSi alloy in simulated body fluid (SBF) to evaluate its biocorrosion response and potential as an orthopedic implant material. Specifically, the alloy's microstructure was investigated to reveal the elemental segregations and severe segregation zones were identified and analyzed. Static immersion experiments were carried out in SBF in an electronically controlled water bath to examine the ion release behavior of the alloy. The compositions of the surface oxide layers forming upon static immersion were investigated using X-ray photoelectron spectroscopy. Then, potentiodynamic polarization experiments were performed in SBF at 37 °C, which showed that the alloy exhibited a transpassive dissolution behavior, constantly releasing toxic metallic ions. This warrants further elaboration to control the aforementioned ion release mechanism by optimizing the microstructure of CoCrAlSi alloy to evaluate its usability as a potential orthopedic implant.
KW - Corrosion
KW - Metal
KW - Passivation
KW - Shape memory
KW - X-ray photoelectron spectroscopy (XPS)
UR - http://www.scopus.com/inward/record.url?scp=85217155792&partnerID=8YFLogxK
U2 - 10.1557/s43578-024-01514-2
DO - 10.1557/s43578-024-01514-2
M3 - Article
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
ER -