Abstract
The effect of daily electrolyte renewal on the corrosion mechanisms and kinetics of WE43Mg alloy in a modified simulated body fluid (m-SBF) is investigated by electrochemical, hydrogen evolution, analytical and surface characterization techniques. It is shown that by performing electrolyte renewal, physiological control of corrosion products and concentration of relevant electrolyte components such as calcium, phosphate and carbonate species, can be better emulated. Electrolyte renewal affects the corrosion mechanism by promoting partial dissolution of the corrosion layer and increasing mass transport, thereby delaying the increase in the corrosion layer protective ability and the occurrence of localized corrosion.
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