In vitro characterization of ZM21 mini-tube used for biodegradable metallic stent
| Autor: | Yufeng Zheng, Jingjun Jiang, W.R. Zhou, Jie Zhou, Sander Leeflang, Nan Li, Dong Bian |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Mechanical Engineering medicine.medical_treatment Metallurgy Stent 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Corrosion Metal Compressive strength Mechanics of Materials Impurity visual_art visual_art.visual_art_medium medicine Degradation (geology) General Materials Science Tube (fluid conveyance) 0210 nano-technology |
| Zdroj: | Materials Letters. 211:261-265 |
| ISSN: | 0167-577X |
| Popis: | Feasibility of a ZM21 mini-tube to be used as biodegradable stent applications was studied mainly focusing on its microstructure, mechanical property and corrosion behaviors. This mini-tube was composed of α-Mg, a small amount of Mn 0.815 Si 0.185 and possibly some undissolved Mn. Compressive yield strength, ultimate compressive strength and compressive strain of this mini-tube were 86.5 ± 4.9 MPa, 347.7 ± 15.0 MPa and 10.9 ± 0.4%, respectively. It exhibited decent corrosion resistance in Hank’s solution with a degradation rate of 0.26 mm/y. ZM21 mini-tube exhibited great potential to be used as biodegradable stents. But before that, localized corrosion should be well solved through impurity control and microstructure control. |
| Databáze: | OpenAIRE |
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