Investigation of atmospheric corrosion of mild steel after treatment by several inhibitor solutions

Malaibari, Zuhair; Kahraman, Ramazan; Saricimen, H.; Quddus, Abdul

doi:10.1179/174327807x196825

Cited by 7 publications

(9 citation statements)

References 22 publications

(34 reference statements)

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“…It is noteworthy that 10 mM NaH2PO4.H2O solution was found optimal in our earlier study 20 . Corrosion tests were carried out in neutral 3.5% NaCl solution at 23 °C.…”

Section: Corrosion Measurementsmentioning

confidence: 67%

“…Based on our earlier experience, the inhibitor when used in 10 mM concentration had exhibited outstanding performance in protecting mild steel samples by showing the lowest corrosion rate of treated samples upto 180 days, in both electrochemical and weight loss measurements, and preventing discoloration of treated samples upto 130 days of atmospheric exposure 20 . In the present study, inhibitor NaH2PO4.H2O was applied to the surface of the steel substrate prior to inserting it into the Watt's bath for electrodeposition.…”

Section: Role Of Inhibitormentioning

confidence: 99%

“…In the present study, carbon steel samples were treated with sodium dihydrogen orthophosphate NaH2PO4.H2O inhibitor prior to Ni electrodeposition. The authors have prior experience with the selected inhibitor because of its efficacy and excellent performance for protecting mild steel exposed to outdoor atmospheric environment 20 . Our aim was to develop an active inhibitor layer underneath Ni that would provide added protection from corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Behavior of Coarse- and Fine-Grain Ni Coatings Incorporating NaH2PO4.H2O Inhibitor Treated Substrates

et al. 2015

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Plain carbon steel substrates were treated with NaH2PO4.H2O inhibitor for 24 hours and coated with Ni using dc and pulse electrodeposition in standard Watt's bath. The effect of dc and pulse electrodeposition, on the microstructure and corrosion properties of Ni coatings in 3.5 wt% NaCl solution was studied. The effect of inhibitor on the deposition process and corrosion behavior was also examined. Materials characterization was performed using field emission scanning electron microscopy, cross-sectional scanning transmission electron microscopy, atomic force microscopy, x-ray diffraction and nanoindentation. Experimental results indicated that pulse electrodeposition produced fine grained Ni coatings that showed lower corrosion rate compared to coarse grained dc electrodeposited Ni. Pretreatment of substrates with inhibitor did not adversely affect the deposition process and adherent Ni coatings were readily developed. The results showed that pulse electrodeposition could be used to produce hard corrosion resistant Ni coatings while the inhibitor treatment yielded enhanced corrosion protection by providing a protective buffer layer between the Ni coating and the substrate.

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“…It is noteworthy that 10 mM NaH2PO4.H2O solution was found optimal in our earlier study 20 . Corrosion tests were carried out in neutral 3.5% NaCl solution at 23 °C.…”

Section: Corrosion Measurementsmentioning

confidence: 67%

Section: Role Of Inhibitormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Corrosion Behavior of Coarse- and Fine-Grain Ni Coatings Incorporating NaH2PO4.H2O Inhibitor Treated Substrates

et al. 2015

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“…Due to its low concentration in carbon (up to 0.29 wt %), mild steel exhibits extreme durability, great affordability, and significant mechanical, thermal, and magnetic properties [1][2][3]. Due to mild steel's increasing utilization, there has been great concern for the susceptibility of such steels caused by environmental corrosive factors, such as the humidity, acidity, or salinity of the atmosphere [4][5][6]. Thus, lots of studies have been focusing on low-alloy (weathering) steel corrosion and how to encounter it in a functional way [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Corrosion Inhibitive Effect of 2-Mecraptobenzothiazole and Na2HPO4 on Industrial Conveying API 5L X42 Pipeline Steel

et al. 2019

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Mild or low-carbon steel has an increasing utilization and is widely used for building construction, machinery parts, and pipelines, because it can be machined easily and has enhanced weldability as well as a low price. In any case, the corrosion resistance of mild steel under the conditions in industrial applications or in atmosphere is a thoughtful concern. This study inquires into the application of 2-mecraptobenzothiazole (MBT) and Na2HPO4 as corrosion inhibitors for the protection of API 5L X42 pipeline steel in 3.5 wt % NaCl as well as in water from the Athens city supply system. The electrochemical/morphological characterizations of the aforementioned mild steel proved that the corrosion protection mechanisms can be assigned to the protective layers created onto the metal surface because of the presence of the inhibitors, which prevent chloride’s penetration. The synergistic effect of the MBT and Na2HPO4 corrosion inhibition behavior, in a molar ratio of 1:1, revealed that the additives performed effectively with corrosion inhibition efficiency above 90%.

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“…The corrosion rates of the wet/dry cycled specimens ranged between 127.0 and 3,048.0mm/y, whereas the corrosion rates of specimens corroded outdoors ranged between 127.0 and 2,540.0mm/y (Malaibari et al, 2007).…”

Section: Discussionmentioning

confidence: 94%

Corrosion of inhibitor treated carbon steel during wet/dry cycling tests

Saricimen

2009

Anti-Corrosion Methods and Materials

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Purpose -The purpose of this paper is to study the inhibition of carbon steel corrosion under wet/dry conditions using electrochemical techniques. Design/methodology/approach -Sodium dihydrogen orthophosphate, dicyclohexylamine nitrite and sodium benzoate were used as inhibitors in the investigation. Plain carbon steel specimens were treated with three different inhibitors for a set period of time. One group of the specimens was subjected to 60 wet/dry cycles whilst a second group was kept continuously immersed in distilled water during the same period. The corrosion rates of the specimens were determined by electrochemical methods at several intervals during corrosion. Findings -The three inhibitors showed good performance during the whole 60 days of wet/dry cycling. Sodium dihydrogen orthophosphate was the best of the three, giving the lowest corrosion rates. However, during full immersion tests in distilled water, specimens that had been treated with dicyclohexylamine nitrite and sodium benzoate performed better than did those treated with sodium dihydrogen orthophosphate. Moreover, the corrosion rates were significantly higher in the case of wet/dry cycling due to differential aeration created through partial immersion, which was a consequence of the wet and dry cycling process. Originality/value -This study showed the beneficial effect of inhibitors in slowing down the corrosion of steel. Furthermore, wet/dry cycling of steel samples in the laboratory produced corrosion rates that were comparable to those measured under actual outdoor conditions.

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Investigation of atmospheric corrosion of mild steel after treatment by several inhibitor solutions

Cited by 7 publications

References 22 publications

Corrosion Behavior of Coarse- and Fine-Grain Ni Coatings Incorporating NaH2PO4.H2O Inhibitor Treated Substrates

Corrosion Behavior of Coarse- and Fine-Grain Ni Coatings Incorporating NaH2PO4.H2O Inhibitor Treated Substrates

Comparative Study on the Corrosion Inhibitive Effect of 2-Mecraptobenzothiazole and Na2HPO4 on Industrial Conveying API 5L X42 Pipeline Steel

Corrosion of inhibitor treated carbon steel during wet/dry cycling tests

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