Electrochemical properties and released ions of Au-1.6mass%Ti alloy

Yukyo Takada, Masayuki Ito, Kohei Kimura, Osamu Okuno

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The electrochemical properties and released ions of binary Au-1.6mass%Ti alloy were evaluated in 0.9% NaCl and 1% lactic acid solutions and compared with those of Au-Ag-Pd alloy and Type 4 gold alloy. Rest potential and anodic polarization curve of Au-1.6mass%Ti alloy were almost the same as those of pure gold regardless of thermal condition (softening, hardening, or as cast). Among the alloys in comparison, the anodic polarization curve of Au-1.6mass%Ti alloy showed that it had the least current density and best stability when subject to electrochemical oxidation. Though Au-1.6mass%Ti alloy did release a small amount of Ti ions in 1% lactic acid solution, the amount of released Ti ions was not more than 1/5 of the amount released by pure titanium under the same condition. In the same vein, the total amount of ions released from Au-1.6mass%Ti alloy was much lower than that of the precious alloys in both solutions.

Original languageEnglish
Pages (from-to)153-162
Number of pages10
JournalDental materials journal
Issue number2
Publication statusPublished - 2005 Jun


  • Electrochemical property
  • Gold titanium alloy
  • Released ions

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)


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