Corrosion resistance improvement of titanium base alloys

Química Nova

Drob, Paula¹  Technical University Gh. Asachi, Iasi, Romania¹  Rosca, Julia C. Mirza¹  Mareci, Daniel¹  Institute of Physical Chemistry Ilie Murgulescu, Bucharest, Romania¹  Vasilescu, Cora¹  Drob, Silviu I.¹  Las Palmas de Gran Canaria University, Tafira, Spain¹  Popa, Mihai V.¹  Vasilescu, Ecaterina¹ 

关键词: corrosion rates;    EIS;    Ti6Al4V1Zr alloy.;   

DOI  :  10.1590/S0100-40422010000900014

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown