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Corrosion Behavior and Surface Analysis of Melt-spun Mg-based Metallic Glass in Physiological Saline Solution
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting.
2012 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 706-709, 606-611 p.Article in journal (Refereed) Published
Abstract [en]

The developed Mg-based metallic glass shows great potential as implants in biomedicalapplications instead of crystalline Mg alloys, which may possesses acceptable corrosion properties. Inthis study, corrosion behaviors of melt-spun amorphous Mg67Zn28Ca5 ribbons were investigated inphysiological saline solution. Electrochemical testing and hydrogen evolution rate indicated that theglassy ribbons obtained at lower wheel speed were more noble with smaller corrosion current, andpossessed a comparatively lower corrosion rate in physiological saline solution. Surface morphologyanalysis revealed that glassy Mg67Zn28Ca5 ribbons exhibited a strong susceptibility to localizedpitting corrosion. A Zn-rich passive layer was formed on the surfaces of the glassy ribbons, indicatingthat Zn was an effective alloying element to enhance the corrosion resistance of amorphousMg67Zn28Ca5 alloys.

Place, publisher, year, edition, pages
Switzerland: Trans Tech Publications Inc., 2012. Vol. 706-709, 606-611 p.
Keyword [en]
Corrosion, metallic glass, magnesium alloy, biodegradation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-17016DOI: 10.4028/www.scientific.net/MSF.706-709.606Local ID: JTHMaterialISOAI: oai:DiVA.org:hj-17016DiVA: diva2:473911
Available from: 2012-01-08 Created: 2012-01-08 Last updated: 2015-11-17Bibliographically approved

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