期刊
ACTA BIOMATERIALIA
卷 9, 期 10, 页码 8585-8592出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.actbio.2013.04.027
关键词
Biodegradable stent; Metal; Stent fabrication; Laser cutting; Annealing
资金
- Malaysian Ministry of Higher Education (MOHE)
- Universiti Teknologi Malaysia (UTM) through the Flagship [Q.J130000.2445.00G73]
Biodegradable stents are considered to be a recent innovation, and their feasibility and applicability have been proven in recent years. Research in this area has focused on materials development and biological studies, rather than on how to transform the developed biodegradable materials into the stent itself. Currently available stent technology, the laser cutting-based process, might be adapted to fabricate biodegradable stents. In this work, the fabrication, characterization and testing of biodegradable Fe-Mn stents are described. A standard process for fabricating and testing stainless steel 316L stents was referred to. The influence of process parameters on the physical, metallurgical and mechanical properties of the stents, and the quality of the produced stents, were investigated. It was found that some steps of the standard process such as laser cutting can be directly applied, but changes to parameters are needed for annealing, and alternatives are needed to replace electropolishing. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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