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

Autor:	Iulian Vasile Antoniac, R. N. Ionescu, Mihai Buzatu, C. M. Cotruţ, Mihai Buţu, E. Ungureanu, Radu Stefanoiu, Gheorghe Iacob, M. I. Petrescu, Victor Geanta, Ş. I. Ghica
Rok vydání:	2019
Předmět:	Horizontal scan rate Tafel equation Materials science chemistry Open-circuit voltage Titanium alloy chemistry.chemical_element Composite material Electrochemistry Elastic modulus Potentiostat Titanium
Zdroj:	IOP Conference Series: Materials Science and Engineering. 572:012028
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/572/1/012028
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f1e60c08c9de3ec59f5c5070cb19f7a https://doi.org/10.1088/1757-899x/572/1/012028 Zobrazit plný text záznamu