Corrosion resistance improvement of titanium base alloys

Autor: Mihai V. Popa, Ecaterina Vasilescu, Paula Drob, Cora Vasilescu, Silviu I. Drob, Daniel Mareci, Julia C. Mirza Rosca
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2010
Předmět:
Zdroj: Química Nova, Vol 33, Iss 9, Pp 1892-1896 (2010)
Druh dokumentu: article
ISSN: 1678-7064
0100-4042
DOI: 10.1590/S0100-40422010000900014
Popis: The corrosion resistance of the new Ti-6Al-4V-1Zr alloy in comparison with ternary Ti-6Al-4V alloy in Ringer-Brown solution and artificial Carter-Brugirard saliva of different pH values was studied. In Ringer-Brown solution, the new alloy presented an improvement of all electrochemical parameters due to the alloying with Zr; also, impedance spectra revealed better protective properties of its passive layer. In Carter-Brugirard artificial saliva, an increase of the passive film thickness was proved. Fluoride ions had a slight negative influence on the corrosion and ion release rates, without to affect the very good stability of the new Ti-6Al-4V-1Zr alloy.
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