Investigating the efficacy of Curcuma longa against Desulfovibrio desulfuricans influenced corrosion in low-carbon steel

Abstract The effectiveness of Curcuma longa extract in the control of low-carbon steel corrosion caused by sulfate-reducing bacteria (SRB) in Baar’s medium was investigated. The SRB taken for the study was Desulfovibrio desulfuricans. Specimens in contact with the medium containing SRB exhibited a corrosion rate more than 10 times that of the specimens in contact with the medium without SRB. The weight loss studies showed that the addition of 50 ppm C. longa extracts to the medium containing SRB resulted in an average inhibition efficiency of 91.2% for a four week immersion period. The inhibitor extract altered the reaction rates of both cathodic and anodic reactions which were confirmed from the potentiodynamic polarization (PP) studies. Electrochemical impedance spectroscopy (EIS) studies showed a reduction in the number of sessile bacteria upon inhibitor addition which was confirmed by the microscopy. Severe pitting was observed in the morphological analysis of the specimen in the absence of inhibitor treatment. Apart from adsorption onto the specimen surface to minimize the biocorrosion, the inhibitor extract also served as an anti-film forming and antibacterial agent.

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Phenylcoumarin Glucoside as a Natural Inhibitor in the Protection of Low Carbon Steel Against Corrosion

MRS Advances ◽

10.1557/adv.2017.618 ◽

2017 ◽

Vol 2 (62) ◽

pp. 3909-3915

Author(s):

Héctor M. Barbosa Cásarez ◽

Araceli Espinoza Vázquez ◽

Francisco J. Rodríguez-Gomez

Keyword(s):

Carbon Steel ◽

Inhibition Efficiency ◽

Electrochemical Impedance ◽

Electrochemical Techniques ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Low Carbon ◽

Low Concentrations ◽

Natural Inhibitor ◽

Polarization Studies

AbstractPhenylcoumarin glucoside (4-PC) is a compound extracted from the plant Hintona latiflora and was studied as inhibitor for AISI 1018 steel corrosion in 3% NaCl solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, which may find application as eco-friendly corrosion inhibitors. The 4-PC provides inhibitor properties that protect AISI 1018 low carbon steel against corrosion at low concentrations (5 ppm) obtained by EIS. Polarization studies showed that the inhibitor was of mixed type. The inhibition efficiency by the two electrochemical techniques shows similar results. The inhibitor adsorption was demonstrated to be a combined process (physisorption and chemisorption) according to the Langmuir isotherm.

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ACTIVE-POLYPHENOLIC-COMPOUNDS-RICH GREEN INHIBITOR FOR THE SURFACE PROTECTION OF LOW CARBON STEEL IN ACIDIC MEDIUM

Surface Review and Letters ◽

10.1142/s0218625x19501543 ◽

2019 ◽

Vol 27 (06) ◽

pp. 1950154 ◽

Cited By ~ 1

Author(s):

ILL-MIN CHUNG ◽

VENKATESAN HEMAPRIYA ◽

PONNUSAMY KANCHANA ◽

NATARAJAN ARUNADEVI ◽

SUBRAMANIAN CHITRA ◽

...

Keyword(s):

Carbon Steel ◽

Inhibition Efficiency ◽

Electrochemical Impedance ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Low Carbon ◽

Green Inhibitor ◽

Surface Protection ◽

Langmuir Adsorption ◽

Phytochemical Components

Eco-friendly biodegradable Rhododendron schlippenbachii (R. schlippenbachii) green inhibitors, R. schlippenbachii methanolic (RSMeOH) extract, which can effectively reduce low carbon steel corrosion rate, were investigated using weight-loss and electrochemical (electrochemical impedance spectroscopy) techniques. The inhibitors exhibited higher efficiency by retarding the corrosion process in 1[Formula: see text]M H2SO4 and the inhibition efficiency is found to be concentration dependent. The reactivity of the predominant phytochemical components of the extract are analyzed. The adsorption of inhibitors on low carbon steel is followed the Langmuir adsorption. The protective inhibitor film formed on the metal surface was confirmed by SEM and AFM techniques.

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A study on anticorrosive property of phenolic components from Pachysandra terminalis against low carbon steel corrosion in acidic medium

Pigment & Resin Technology ◽

10.1108/prt-09-2018-0095 ◽

2019 ◽

Vol 48 (5) ◽

pp. 389-396 ◽

Cited By ~ 5

Author(s):

Subramanian Chitra ◽

Ill-Min Chung ◽

Seung-Hyun Kim ◽

Mayakrishnan Prabakaran

Keyword(s):

Carbon Steel ◽

Active Sites ◽

Electrochemical Impedance ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Total Phenolic ◽

Low Carbon ◽

Content Type ◽

Phenolic Components ◽

Aggressive Attack

Purpose The study aims to find new anticorrosive components from a plant source, namely, Pachysandra terminalis Sieb. et Zucc. (P. terminalis), a traditional medicinal shrub predominantly used by Tujia people. Design/methodology/approach Because phenolic components from plants are known for its numerous values in several fields, the corrosion inhibitive ability of P. terminalis extract was analyzed by electrochemical studies (polarization, electrochemical impedance spectroscopy) and surface examination (by scanning electron microscopy [SEM], energy-dispersive X-ray spectroscopy [EDX] and atomic force microscopy [AFM]). Findings The examination of total phenolic content (TPC), total flavonoids content (TFC) and individual phenols (UHPLC) showed the presence of 85.21 mg/g (TPC), 25.38 mg/g (TFC), protocatechuic acid (62.10 µg/g), gentisic acid (60.21µg/g), rutin (50.12 µg/g), kaempferol (46.58 µg/g) and p-Coumaric acid (42.35µg/g) . The polarization study shows that the maximum shift is (16 mV), imposing a mixed mode of inhibition, dominantly anodic. The surface morphology studies by SEM, EDX and AFM confirmed the adsorption of phytochemical components on the low carbon steel surface blocking the active sites. Originality/value The study unveils the inhibitive nature of P. terminalis, preventing aggressive attack by 0.5 M HCl on low carbon steel. This also exhibits few phenols present in methanolic leaf extract which may be the role player of corrosion inhibition.

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Corrosion Behavior of Al-Si-Cr-Cu Bearing Low Carbon Steel in A Cyclic Dry/Wet Laboratory Test

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.79-82.1017 ◽

2009 ◽

Vol 79-82 ◽

pp. 1017-1020 ◽

Cited By ~ 1

Author(s):

Hui Shu Zhang ◽

Dong Ping Zhan ◽

Song Lian Bai ◽

Zhou Hua Jiang

Keyword(s):

Carbon Steel ◽

Electrochemical Impedance ◽

Low Carbon Steel ◽

Optical Microscope ◽

Low Carbon ◽

Rust Layer ◽

Electrochemical Behaviors ◽

Corrosion Rates ◽

The Matrix ◽

Corrosion Behaviors

The corrosion behaviors of Al-Si-Cr-Cu bearing low carbon steel and a reference steel Q235 were tested in a cyclic dry/wet environment containing 0.01mol/L NaHSO3 in laboratory. Rust layers were observed by optical microscope (OM), scanning electron microscopy (SEM) and XRD. The electrochemical behaviors of the steels were studied on the polarization curves and electrochemical impedance spectroscopy (EIS). The results indicate that after 120h corrosion test, the annual corrosion rates of the designed steels reduce 42 % than Q235 at least. The corrosion products are generally iron oxyhydroxides and oxides such as FeOOH, γ-FeOOH, α-FeOOH, γ-Fe2O3, Fe3O4. The α-FeOOH possesses good stabilization mainly exits and can improve the corrosion resistance. There are the enrichments of Cu, Cr, Si and Al in the rust layer close to the matrix, which make the rust layer be more compact and protected. The corrosion currents of the two designed steels are lower than that of Q235, the corrosion potentials are higher than that of Q235 after Tafel fitting. The rust layer impedances of the designed steels are higher than that of Q235.

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Effect of Nanoparticle Addition in Hybrid Sol-Gel Silane Coating on Corrosion Resistance of Low Carbon Steel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.686.244 ◽

2013 ◽

Vol 686 ◽

pp. 244-249 ◽

Cited By ~ 10

Author(s):

Poovarasi Balan ◽

Aaron Ng ◽

Chee Beng Siang ◽

R.K. Singh Raman ◽

Eng Seng Chan

Keyword(s):

Corrosion Resistance ◽

Carbon Steel ◽

Electrochemical Impedance ◽

Sol Gel ◽

Low Carbon Steel ◽

Electrochemical Corrosion ◽

Alumina Nanoparticles ◽

Low Carbon ◽

Silane Coating ◽

Sol Gel Films

Chromium pre-treatments of metal have been replaced by silane pre-treatments as more environmental friendly option. Nanoparticles can be added in the silane sol-gel network have been reported to improve corrosion resistance. In this work, the electrochemical corrosion resistance of low carbon steel coated with hybrid organic-inorganic sol-gel film filled with nanoparticles was evaluated. The sol-gel films have been synthesized from 3-glycidoxy-propyl-trimethoxy-silane (3-GPTMS) and tetra-ethyl-ortho-silicate (TEOS) precursors. These films have been impregnated with 300 ppm of silica or alumina nanoparticles. The electrochemical behavior of the coated steel was evaluated by means of electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Equivalent circuit modeling, used for quantifying the EIS measurements showed that sol-gel films containing silica nanoparticles improved the barrier properties of the silane coating. The silica nanoparticle-containing films showed highest initial pore resistance over the five days of immersion in 0.05M NaCl.

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Joint effect of Fe(II) and Fe(III) cations on corrosion of low-carbon steel in mixture of sulfuric and phosphoric acids containing composite inhibitors based on IFKhAN-92

Corrosion Materials Protection ◽

10.31044/1813-7016-2021-0-8-18-29 ◽

2021 ◽

pp. 18-29

Author(s):

Ya.G. Avdeev ◽

◽

A.V. Panova ◽

T.E. Andreeva ◽

Yu.I. Kuznetsov ◽

...

Keyword(s):

Carbon Steel ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Joint Effect ◽

Molar Ratio ◽

Protective Effects ◽

Low Carbon ◽

Experimental Conditions ◽

Component Mixture ◽

Inhibition effect of sodium benzoate, zinc benzoate and zinc bromide on low carbon steel corrosion in dilute H2SO4 and HCL solution

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/872/1/012063 ◽

2020 ◽

Vol 872 ◽

pp. 012063

Author(s):

Roland Tolulope loto

Keyword(s):

Carbon Steel ◽

Sodium Benzoate ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Low Carbon ◽

Zinc Bromide ◽

Inhibition Effect ◽

Zinc Benzoate ◽

Hcl Solution

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Performance of Potassium Metavanadate as a Low Carbon Steel Corrosion Inhibitor in Chloride and Sulfide Environment

ECS Meeting Abstracts ◽

10.1149/ma2009-01/14/674 ◽

2009 ◽

Keyword(s):

Carbon Steel ◽

Corrosion Inhibitor ◽

Low Carbon Steel ◽

Steel Corrosion ◽

Low Carbon

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Study of Corrosion Behavior of Friction Surfacing AA6351 Aluminium Alloy Coating on AISI 1020 Low Carbon Steel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1012.401 ◽

2020 ◽

Vol 1012 ◽

pp. 401-406

Author(s):

Carlos Trivellato de Carvalho Filho ◽

Pedro Paiva Brito

Keyword(s):

Surface Roughness ◽

Corrosion Resistance ◽

Carbon Steel ◽

Corrosion Behavior ◽

Electrochemical Impedance ◽

Low Carbon Steel ◽

Alloy Coating ◽

Low Carbon ◽

Friction Surfacing ◽

Finishing Process

In the present work, the friction surfacing process was applied to manufacture aluminum alloy (AA6351) coatings on low carbon steel (AISI 1020) substrates. After friction surfacing the AA6351 deposited coatings were submitted to two finishing process in order to adjust surface roughness: milling and milling followed by sanding. The corrosion behavior of the two finishing process was compared with the as-deposited condition in order to determine the influence of surface roughness on the corrosion resistance of friction surfacing coatings. The corrosion behavior was examined by electrochemical impedance spectroscopy and potentiodynamic polarization in a 3.5wt.%NaCl solution containing naturally dissolved O2. The results obtained indicated that the elevated surface roughness observed in the as-deposited condition led to relatively lower corrosion resistance in comparison, with lower values for polarization resistance and more anodic corrosion potential.

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