We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Microstructure and Corrosion Behavior of Iron Based Biocomposites Prepared by Laser Additive Manufacturing.
- Authors
Zhou, Yan; Xu, Lifeng; Yang, Youwen; Wang, Jingwen; Wang, Dongsheng; Shen, Lida
- Abstract
Iron (Fe) has attracted great attention as bone repair material owing to its favorable biocompatibility and mechanical properties. However, it degrades too slowly since the corrosion product layer prohibits the contact between the Fe matrix and body fluid. In this work, zinc sulfide (ZnS) was introduced into Fe bone implant manufactured using laser additive manufacturing technique. The incorporated ZnS underwent a disproportionation reaction and formed S-containing species, which was able to change the film properties including the semiconductivity, doping concentration, and film dissolution. As a result, it promoted the collapse of the passive film and accelerated the degradation rate of Fe matrix. Immersion tests proved that the Fe matrix experienced severe pitting corrosion with heavy corrosion product. Besides, the in vitro cell testing showed that Fe/ZnS possessed acceptable cell viabilities. This work indicated that Fe/ZnS biocomposite acted as a promising candidate for bone repair material.
- Subjects
IRON corrosion; ZINC sulfide; PITTING corrosion; MICROSTRUCTURE; BODY fluids; BONE mechanics
- Publication
Micromachines, 2022, Vol 13, Issue 5, p712
- ISSN
2072-666X
- Publication type
Article
- DOI
10.3390/mi13050712