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Abstract The role of corrosion products formed by pre-corrosion of AISI 1018 mild carbon steel on the efficiency of the polymerizable corrosion inhibitor propargyl alcohol in 4 M HCl at 80 °C… Click to show full abstract
Abstract The role of corrosion products formed by pre-corrosion of AISI 1018 mild carbon steel on the efficiency of the polymerizable corrosion inhibitor propargyl alcohol in 4 M HCl at 80 °C under laminar and turbulent flow conditions was studied. Propargyl alcohol is less efficient on the pre-corroded steel than on freshly ground specimens due to the presence of corrosion products, such as cementite (Fe 3 C) and a C-rich phase formed by acid hydrolysis of cementite. The adverse effect of pre-corrosion can be suppressed by proper optimization of the inhibitor composition and the inhibitor dosage.
Journal Title: Corrosion Science
Year Published: 2017
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