Corrosion inhibition of carbon steel in hydrochloric acid by some polyethylene glycols

Ashassi-Sorkhabi, Habib; Ghalebsaz-Jeddi, N.; Hashemzadeh, Fatemeh; Jahani, Hossein

doi:10.1016/j.electacta.2005.11.002

Cited by 185 publications

(76 citation statements)

References 18 publications

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“…The centre of the experimental arc was displaced below the real axis. This phenomenon was related to the surface heterogeneity due to the microscopic roughness of the electrode surface and inhibitor adsorption [47][48][49]. The equivalent circuit of Fig.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

et al. 2012

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a b s t r a c tThe effect of addition of gramine on mild steel dissolution in deaerated 1.0 M hydrochloric acid was studied through potentiodynamic polarisation curves, electrochemical impedance spectroscopy and gravimetric measurements in the temperature range from 25°C to 55°C. Gramine was found to shift the corrosion potentials towards less noble values and decrease both dissolution of mild steel and hydrogen evolution reaction. Gramine did not affect the corrosion reaction mechanism (blocking effect). Results obtained from the several measurement techniques were in good agreement and revealed good inhibition efficiencies in the concentration range (0.75 mM Ä 7.5 mM) particularly at higher concentrations.

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Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

et al. 2012

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“…Results are summarized in Table 4. The inhibition effect of some Polyethylene glycols (PEGs) on carbon steel corrosion at 25°C in 0.5N HCl as corrosive medium was evaluated by weight loss, polarization and electrochemical impedance spectroscopy techniques [19]. In order to study the effect of PEGs' structure on the inhibition efficiency, different molecular weights: 400, 1000, 4000 and 10,000 gmol -1 was selected.…”

Section: +mentioning

confidence: 99%

Polymers as Corrosion Inhibitors for Metals in Different Media - A Review

Umoren¹

2009

TOCORRJ

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Several works have been done and more are on the pipeline on the influence of organic compounds containing polar functions on the corrosion inhibition of metals in various aqueous media. Corrosion inhibition by such compounds is generally attributed to their adsorption on the metal/solution interface. The specific action of an inhibitor depends on the nature of its interaction with metal surface, which causes a change in either mechanism of the electrochemical corrosion process or in the surface area available for the process. Thus, factors such as physiochemical properties of the inhibitors, the nature and surface charge of the metal, solution composition and pH are important considerations. Polymers function as corrosion inhibitors because of their ability to form complexes through their functional groups with metal ions which occupy large area and by so doing blanket the metal surface from aggressive anions present in solution.

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“…Sa slike 2 i slike 3 se vidi da Nyquist-ove krive i u osnovnom i u inhibitorskim rastvorima odstupaju od idealnog polukružnog oblika, što je i karakteristično za bakar u kiseloj sulfatnoj sredini. Ovaj fenomen se često pripisuje heterogenosti bakarne površine ili adsorpciji inhibitora [16][17]. Sa slika 2 i 3, takođe, je uočljivo i to da se Nyquist-ove krive u osnovnom rastvoru i u inhibitorskim rastvorima razlikuju po obliku.…”

Section: 1 Rezultati Elektrohemijske Impedansne Spektroskopijeunclassified

Inhibition of copper corrosion using thiazole derivative

Vastag¹,

Nakomčić²,

Apostolov³

et al. 2015

Zas Mat

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Na 2 SO 4 , pH=3). Dobijeni rezultati ukazuju na dobru inhibitorsku efikasnost ispitivanog derivata UVODBakar i njegove legure spadaju u važan konstrukcioni materijal koji je često izložen kiseloj sredini prilikom prečišćavanja, pri otklanjanju korozionih proizvoda sa prenosnika toplote, elektrohemijskog glačanja, itd. Najčešće korišćena kiselina u ovim procesima je sumporna kiselina, u čijem prisustvu može doći do korozije bakra, pošto je formiranje pasivnog oksidnog sloja na površini metala onemogućeno [1]. Zaštita bakra u kiseloj sredini se najčešće vrši primenom korozionih inhibitora. Veliki broj molekula je do sada ispitivan kao potencijalni inhibitor korozije bakra. Na osnovu objavljenih rezultata uočljivo je da dobre inhibitorske osobine imaju organski molekuli koji u svojoj strukturi sadrže heteroatome azota, sumpora ili kiseonika [2][3][4][5][6][7][8]. Najveći broj njih ispoljava dobru inhibitorsku efikasnost u neutralnoj sredini, dok je broj jedinjenja sa dobrim zaštitinim osobinama u kiseloj sredini limitiran [9][10][11][12][13].Derivati tiazola spadaju u grupu jedinjenja koja se pokazala kao dobar inhibitor korozije bakra u kiselo-sulfatnoj sredini. Ovi organski molekuli svoje inhibitorsko dejstvo na koroziju pretežno ispoljavaju adsorpcijom na metalnu površinu usled čega se stepen korozije metala smanjuje [14][15].

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Corrosion inhibition of carbon steel in hydrochloric acid by some polyethylene glycols

Cited by 185 publications

References 18 publications

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

Polymers as Corrosion Inhibitors for Metals in Different Media - A Review

Inhibition of copper corrosion using thiazole derivative

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