The corrosion behaviour for nitinol alloy under simulated biological conditions with the presence of proteins was investigated using electrochemical methods. The electrochemical tests were performed with the addition of bovine serum albumin with concentrations of 0 %, 2 %, 4 %, 6 %, 8 % and 10 % at 37 8C. The electrochemical method used in this study was potentiodynamics polarization to obtain the corrosion rate of the samples. The composition of the bio-implant materials was studied using X-ray diffraction. The samples showed that they did not undergo any significant change in term of composition. Based on the results obtained, it can be concluded that nitinol alloys have a good corrosion resistant towards all concentrations. Thus, nitinol alloys can perform well with or without the presence of protein-containing solutions thus they are compatible to use as implant materials in human body environment. Keywords: Nitinol alloy / corrosion resistance / electrochemical test / proteins / bovine serum albumin Schlü sselwö rter: Nitinol-Legierung / Korrosionsbestä ndigkeit / elektrochemische Prü fung / Proteine / RinderserumalbuminFigure 7. XRD patterns for nitinol alloy at 10 % bovine serum albumin.The effect of protein concentration on corrosion of nitinol alloy Materialwiss. Werkstofftech. 2018, 49, 489-493
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