In vitro corrosion behavior of Ti-Mo-W alloys in artificial saliva

I. Ghica, C. M. Cotruţ, M. Buzatu, I. V. Antoniac, V. Geantǎ, M. Buţu, M. I. Petrescu, R. Ştefǎnoiu, E. Ungureanu, G. Iacob, R. N. Ionescu

Research output: Contribution to journalConference article

Abstract

Titanium and its alloys are preferred materials used for medical devices manufacturing due to their specific properties. The corrosion behavior in artificial saliva of the newly developed Ti-Mo-W alloys, with elastic modulus closer to the human bone value was studied by means of linear polarization technique in the following steps: I) measurement/monitoring of open circuit potential (EOC) over 6 hours; ii) tracing linear polarization curves from ±200 mV (vs. OCP)-Tafel plots, with a scan rate of 0.167 mV/s. Electrochemical tests were performed according to ASTM G59-97 (2014)using a Potentiostat/Galvanostatto which a low current interface (LCI) was coupled. The tests were performedin Fusayama Meyer artificial saliva with a pH of 5.2 at the human body temperature (37±0.5°C) which mimic the oral environment. The results indicate that the alloys Ti15Mo7W and Ti15Mo11W have better corrosion behavior than Ti6Al4V.

Original languageEnglish
Article number012028
JournalIOP Conference Series: Materials Science and Engineering
Volume572
Issue number1
DOIs
Publication statusPublished - 2 Aug 2019
Externally publishedYes
Event2019 International Conference on Innovative Research, ICIR EUROINVENT 2019 - Iasi, Romania
Duration: 16 May 201917 May 2019

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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