Original scientific paper

Studies of Corrosion Resistance of Passive Layers on Al-Ni Alloys in the Presence of Chloride Ions

B. Perić ; Laboratory of General and Inorganic Chemistry, Faculty of Technology, University of Split, 58000 Split, Croatia
Z. Grubač ; Laboratory of General and Inorganic Chemistry, Faculty of Technology, University of Split, 58000 Split, Croatia
L. Sablić ; Laboratory of General and Inorganic Chemistry, Faculty of Technology, University of Split, 58000 Split, Croatia

Abstract

The corrosion resistance of passive layers was studied on cast Al-Ni alloys with an ever-increasing mass content of nickel («;(Ni) = 0.54 - 4.30%).
The method of potentiodynamic polarization, measuring to 10 V, the method of measuring the changes of the current at a constant potential of 0 V, and the method of determining the critical concentrations of chloride ion gave identical dependence of the corrosive resistance of the passive layers on the mass content of nickel in the alloy.
The method of potentiodynamic polarization at low potentials to 1 V was applied to obtain the dependence of insulating properties of the passive layers on the mass content of nickel in alloy.

Keywords

Hrčak ID:

136872

URI

https://hrcak.srce.hr/136872

Publication date:

1.11.1994.

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