Combined effects of rapid dissolution and micro-acidification accelerated Fe biodegradation for orthopedic applications
Source abstract
Abstract
Biomedical Fe, as novel load-bearing implants for clinical applications, is restricted by too slow degradation. Herein, Fe-CaSO 4 biocomposite is prepared at low temperature of 700 ℃. Subsequently, more corrosion active sites and micro-acidic environment produced by rapid dissolution of CaSO 4 accelerate Fe biodegradation. Consequently, corrosion current density and corrosion rate of Fe-CaSO 4 biocomposite greatly increases to 15.23 ± 3.41 μA·cm −2 and 0.19 ± 0.05 mm·y −1 , respectively. Meanwhile, charge transfer resistance of Fe-CaSO 4 biocomposite was significantly reduced to 86.09% than that of Fe. Additionally, Fe-CaSO 4 biocomposite exhibits enough strength up to 343 MPa and good cytocompatibility, indicating a great potential for clinical applications.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Magnesium Alloys: Properties and Applications · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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