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Materials 2017, 10(11), 1316; doi:10.3390/ma10111316

Resistance of Magnesium Alloys to Corrosion Fatigue for Biodegradable Implant Applications: Current Status and Challenges

1
Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia
2
Department of Chemical Engineering, Monash University, Melbourne, VIC 3800, Australia
*
Author to whom correspondence should be addressed.
Received: 13 September 2017 / Revised: 16 October 2017 / Accepted: 14 November 2017 / Published: 16 November 2017
(This article belongs to the Section Biomaterials)
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Abstract

Magnesium (Mg) alloys are attracting increasing interest as the most suitable metallic materials for construction of biodegradable and bio-absorbable temporary implants. However, Mg-alloys can suffer premature and catastrophic fracture under the synergy of cyclic loading and corrosion (i.e., corrosion fatigue (CF)). Though Mg alloys are reported to be susceptible to CF also in the corrosive human body fluid, there are very limited studies on this topic. Furthermore, the in vitro test parameters employed in these investigations have not properly simulated the actual conditions in the human body. This article presents an overview of the findings of available studies on the CF of Mg alloys in pseudo-physiological solutions and the employed testing procedures, as well as identifying the knowledge gap. View Full-Text
Keywords: biodegradable implants; magnesium alloys; corrosion fatigue biodegradable implants; magnesium alloys; corrosion fatigue
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Raman, R.K.S.; Harandi, S.E. Resistance of Magnesium Alloys to Corrosion Fatigue for Biodegradable Implant Applications: Current Status and Challenges. Materials 2017, 10, 1316.

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