Insight into the corrosion inhibition property of two new soluble and non-toxic xanthenbenzoate derivatives

Purpose – The purpose of this paper is to report the studies on the corrosion inhibition property of 4-amino-5-phenyl-4H-1,2,4-triazole-3-thiol (APTT) for the corrosion of 6061 Al-15 vol. pct. SiC(p) composite. Design/methodology/approach – The corrosion behavior of 6061 Al-15 vol. pct. SiC(p) composite was studied at different temperatures in 0.5-M sodium hydroxide (NaOH) solution in the presence of APTT by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopic techniques. The effect of inhibitor concentration and temperature on the inhibitor effect of APTT was studied. The surface morphology of the metal surface was investigated by scanning electron microscopy. The activation parameters for the corrosion of the composite and base alloy, as well as the thermodynamic parameters for the adsorption of APTT on the composite and alloy surfaces, were calculated. Findings – The inhibition efficiency of APTT increases with the increase in the concentration of the inhibitor and decreases with the increase in temperature. The adsorption of APTT on the composite was found to be through physisorption, obeying Langmuir’s adsorption isotherm. APTT acts as a mixed inhibitor with predominant cathodic action on the composite. Practical implications – APTT can be used as an inhibitor for the corrosion of 6061 Al-15 vol. pct. SiC(p) composite in the NaOH medium. Originality/value – This paper provides information regarding the corrosion inhibition property of APTT on 6061 Al-15 vol. pct. SiC(p) composite. An attempt was made to explain the mechanism of the inhibition action by APTT.

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Superhydrophobic Myristic Acid/TiO2-Nickel Coating with Improved Corrosion Inhibition Property Created by Facile Electrodeposition and Modification Methods

JOM ◽

10.1007/s11837-021-04814-8 ◽

2021 ◽

Vol 73 (10) ◽

pp. 3111-3120

Author(s):

Xin Zhang ◽

Huawei Yin ◽

Jianting Tang ◽

Chuanbo Hu ◽

Tingzhen Li

Keyword(s):

Corrosion Inhibition ◽

Myristic Acid ◽

Nickel Coating ◽

Inhibition Property

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Electrochemical Studies of some New Mannich Bases Compounds as Corrosion Inhibitors for Mild Steel in Acidic Media

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.2329 ◽

2012 ◽

Vol 538-541 ◽

pp. 2329-2333 ◽

Cited By ~ 1

Author(s):

Hui Xia Feng ◽

Jian Li ◽

Xiao Hong Gao

Keyword(s):

Mild Steel ◽

Corrosion Inhibition ◽

Corrosion Inhibitors ◽

Steel Corrosion ◽

Mannich Bases ◽

Maximum Efficiency ◽

Tafel Polarization ◽

Mild Steel Corrosion ◽

Polarization Studies ◽

Inhibition Property

The corrosion inhibition behaviour of four selected Mannich bases compounds,namely 3-((N-methyl,N-phenyl)-methyl)2,4-Acetylacetone(MPMAA),3-((N-phenyl)-methyl) 2,4-Acetylacetone (PMAA),3-((N, N-diethyl)-methyl) 2, 4-Acetylacetone(DMAA) and 3-((N, N-methyl)-methyl) 2, 4-Acetylacetone (MMAA) as corrosion inhibitors for mild steel in 1M HCl solutions. Tafel polarization methods were performed to determine the corrosion parameters and inhibition efﬁciencies. Experimental results showed that PMAA is an excellent inhibitor for mild steel corrosion in 1M HCl solutions; showing a maximum efficiency 92.3% at concentration of 40mg/L. Polarization studies showed that the Mannich bases compounds can be regarded as mixed-type inhibitors and the inhibition efﬁciency of the four inhibitors followed the order PMAA > MPMAA > DMAA > MMAA. Then scanning electron microscope (SEM)techniques were also employed to examine the mechanism of corrosion inhibition property.

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