Influence of Heat Treatments on In Vitro Degradation Behavior of Mg‐6Zn Alloy Studied by Electrochemical Measurements
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Abstract
Abstract The influence of heat treatment on the in vitro degradation of Mg‐6Zn alloy is studied by electrochemical measurements. After solid‐solution treatment, the microstructure of the Mg‐6Zn becomes more homogeneous, along with an elevated charge‐transfer resistance in SBF and a reduced corrosion current density. After ageing treatment, the discrete intermetallic γ‐MgZn phase enhances the cathodic hydrogen evolution and impairs the corrosion resistance of the alloy. Galvanic cells are expected on ageing, but the ageing process makes the microstructure of the alloy homogeneous. Heat treatment alters the in vitro degradation behavior of Mg‐6Zn alloy and is applicable in adjusting the biodegradation rate.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Hydrogen Storage and Materials
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