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In vitro dynamic degradation behavior of new magnesium alloy for orthopedic applications

Authors
Yang, Gui-FuKim, Yu-ChanHan, Hyung-SeopLee, Gwang-ChulSeok, Hyun-KwangLee, Jae-Chul
Issue Date
5월-2015
Publisher
WILEY
Keywords
magnesium; zinc; SEM; mechanical properties; biodegradation
Citation
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, v.103, no.4, pp.807 - 815
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
Volume
103
Number
4
Start Page
807
End Page
815
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/93726
DOI
10.1002/jbm.b.33259
ISSN
1552-4973
Abstract
We report on methodologies for use in the design of a biodegradable Mg alloy appropriate for load-bearing but temporary orthopedic implant applications. Comparative studies of Mg-5Ca and Mg-5Ca-1Zn were conducted to explore the effects of a combination of minor alloying and hot extrusion, on the alloy's mechanical properties and corrosion resistance. The extruded Mg-5Ca-1Zn exhibited high ultimate compressive strength of 385 MPa and suffered no significant structural degradation even after immersion in simulated body fluid for 30 days. Mg-5Ca-1Zn alloy showed the mechanical strength and controlled corrosion rate to be considered as an ideal candidate for biodegradable orthopedic implant material. (c) 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 103B: 807-815, 2015.
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공과대학 (신소재공학부)
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