B-15 フッ化物溶液中でのTi-Nb-Ta-Zr合金の電気化学的腐食挙動(歯科用合金・チタン,一般講演(口頭発表),第60回日本歯科理工学会学術講演会(創立30周年記念大会))

概要

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The objective of this study was to investigate the electrochemical behavior of Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) in solutions with or without fluoride, and compared with commercially pure titanium (TI). The TNTZ in a solution with fluoride showed lower open circuit potential, polarization resistance, and higher current density at passive region in dynamic polarization curve than those in a solution without fluoride. Although the electrochemical corrosion parameters for the TNTZ reduced in a fluoride-containing solution, the TNTZ had better resistance to corrosion of fluoride than the TI. Therefore, the TNTZ could have a superior corrosion resistance to commercially pure titanium.
2012-09-25