About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
High-Strength Low-Degradation Mg Microtubes for Biodegradable Vascular Stents |
| Author(s) |
Joung Sik Suh, Chang Dong Yim, Jae-Yeon Kim, Ha Sik Kim, Sang Eun Lee, Jaeseong Kim, Jung-Hoon Park, Hwa-Chul Jung |
| On-Site Speaker (Planned) |
Joung Sik Suh |
| Abstract Scope |
The popularity of biodegradable Mg alloys as potential metallic biomaterials for vascular and orthopedic temporary implants is increasing, due to their favorable mechanical, electrochemical, and biological properties. Nevertheless, several challenges persist with Mg scaffolds, including rapid degradation, inadequate mechanical properties, and intricate manufacturing processes. Alloying and processing are pivotal methods for improving the properties of Mg alloys for use in biomedical applications. This study focuses on the development of the process technology for the fabrication of ultra-precise geometries and the achievement of the mechanical and degradation properties for biodegradable vascular stents. To this end, a two-step extrusion process has been developed to manufacture microtubes. Subsequently, machine learning was employed to reverse-engineer Mg-Zn-Mn-Sr-Ca (ZMJX) alloys for biodegradable microtubes with enhanced strength and reduced degradation rate. The present study investigates the room-temperature tensile properties and biodegradation of ZMJX alloy microtubes in terms of extrusion ratio, microstructure, and texture. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Magnesium, Process Technology |