The Corrosion behaviour of Nitinol wire that has been chemically etched and mechanically polished was studied in a corrosive 0.9% Saline solution. The electrochemical corrosion tests conducted on the as-received straight and curved wires of nitinol included open circuit potential measurement, polarisation resistance and Tafel plots. The chemically etched looped wires exhibited the highest recorded corrosion potential Ecorr and the lowest values of corrosion current icorr. The results of the open circuit potential (OCP) measurements and polarisation resistance, combined with scanning electron microscopy (SEM) indicated the presence of a protective passive corrosion resistant film on the chemically etched wires.
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(2007). The Effect of Shape and Surface Modification on the Corrosion of Biomedical Nitinol Alloy Wires Exposed to Saline Solution. In: Jackson, M.J., Ahmed, W. (eds) Surface Engineered Surgical Tools and Medical Devices. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-27028-9_4
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DOI: https://doi.org/10.1007/978-0-387-27028-9_4
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