Corrosion resistance improvement of titanium base alloys

Química Nova

Mihai V. Popa²  Ecaterina Vasilescu²  Paula Drob²  Cora Vasilescu²  Silviu I. Drob²  Daniel Mareci¹  Julia C. Mirza Rosca¹ 

[1] ,Institute of Physical Chemistry Ilie MurgulescuBucharest,Romania

关键词: corrosion rates;    EIS;    Ti6Al4V1Zr alloy;   

DOI  :  10.1590/S0100-40422010000900014

来源: SciELO

【 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】

CC BY-NC   
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