| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biodegradable Materials for Medical Applications II
|
| Presentation Title |
Thermal Treatment of Zn-based Alloys for Vascular Stenting – Effect of Microstructure on Degradation Behavior and In-vivo Response |
| Author(s) |
Malgorzata Sikora-Jasinska, Ehsan Mostaed, Roger J. Guillory II, Jeremy Goldman, Jaroslaw W. Drelich |
| On-Site Speaker (Planned) |
Malgorzata Sikora-Jasinska |
| Abstract Scope |
Zn-based alloys have become promising materials for bioresorbable vascular stenting due to their favorable degradation rate and adaptability to tissue regeneration. The ability to tune both the corrosion rate and uniformity of stents with a complex geometry is an essential consideration to biosafety of these temporary implants. In our laboratory, high-strength Zn-based multi-element alloys are formulated. In these alloys, intermetallic particles (IMPs) are the important microstructural constituents, influencing their electrochemical properties. By adjusting the IMPs fraction, size and distribution, corrosion behavior of the alloy can be modulated. The presence and characteristics of IMPs are controlled through thermal treatments applied to the alloy. In this presentation, we will show that biocorrosion and biocompatibility of Zn-based alloys correlate with the microstructural evolution induced by thermal treatments. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |