Abstract

The performance of clay purified and intercalated with Ca²⁺ against Nicrofer 3127 alloy corrosion in hydrodynamics conditions was evaluated utilizing electrochemical techniques, weight loss method, and surface analysis. The characterization technique has shown that the clay tested is the montmorillonite type. Purified montmorillonite and Ca²⁺-montmorillonite act as an effective corrosion inhibitor of the Nicrofer 3127 alloy under hydrodynamic conditions at an optimal concentration of 4.0 g/L and 1.0 g/L, respectively. The purpose of intercalating the clay with Ca²⁺ is to improve the adsorption of aggressive agents and to use low concentrations. The better inhibition efficiency for clay intercalated with Ca²⁺ was obtained 75% (based on EIS results) at 1.0 g/L. After 6 h of immersion under hydrodynamic conditions, the inhibitory efficiency of montmorillonite-Ca²⁺ was reached a value of 89%. This behavior can be attributed to the formation of calcium phosphate Ca₃(PO₄)₂ on the surface of the Nicrofer 3127 alloy.

Title

Ismail

Publisher

warad

Publisher Country

Palestine

Publication Type

Prtinted only

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Year

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