Degradation behavior of as cast and powder metallurgy processed Mg-Ca alloys

Eshwara Phani Shubhakar Nidadavolu, Frank Feyerabend, Thomas Ebel, Regine Willumeit-Römer & Michael Dahms
Biodegradability and mechanical properties similar to natural bone have made Mg alloys potential competitors for metal implant applications. Mg-Ca alloys are of interest as Ca is an essential element in the human body. However, an increased Mg2Ca secondary phase with increasing Ca addition results in pitting corrosion in these alloys. Reports suggest that Mg alloys with ≤ 1wt % Ca additions possess good degradation resistance. Hence, Mg-xCa alloys (x= 0.3, 0.6, 0.9 wt %) were...
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