Calculation of Uniform Corrosion Current Density of Iron in Hydrochloric Acid Solutions based on the Principle of Maximum Entropy Production Rate Applied to Literature Data

Abstract

In this paper a new procedure for the calculation of uniform corrosion current density is presented. The procedure is based on the following criterion: corrosion current and extent of anodic and cathodic areas are such that the entropy production rate is maximum. Experimental data for the reaction Fe(s) + HCl(aq) = FeCl₂(aq) + H₂(g), taken from literature, are used to test the new model. A comparison between corrosion current density calculated from weight loss measurements and current density calculated from polarization curves by means of the proposed model is carried out. The proposed model provides a better agreement, between Tafel line extrapolation and gravimetric measurement, in comparison to the mixed potential theory usually adopted.

Original language	English
Pages (from-to)	673-679
Number of pages	7
Journal	Protection of Metals and Physical Chemistry of Surfaces
Volume	54
Issue number	4
DOIs	https://doi.org/10.1134/S2070205118040160
Publication status	Published - 1 Jul 2018

Keywords

corrosion current density
entropy production rate
exchange current density
Tafel slope
uniform corrosion

ASJC Scopus subject areas

Surfaces, Coatings and Films
Organic Chemistry
Metals and Alloys
Materials Chemistry

Access to Document

10.1134/S2070205118040160

Fingerprint Dive into the research topics of 'Calculation of Uniform Corrosion Current Density of Iron in Hydrochloric Acid Solutions based on the Principle of Maximum Entropy Production Rate Applied to Literature Data'. Together they form a unique fingerprint.

Cite this

Calculation of Uniform Corrosion Current Density of Iron in Hydrochloric Acid Solutions based on the Principle of Maximum Entropy Production Rate Applied to Literature Data. / Bestetti, Massimiliano; Franz, Silvia; Hashempour, Mazdak I.; Vicenzo, Antonello.

In: Protection of Metals and Physical Chemistry of Surfaces, Vol. 54, No. 4, 01.07.2018, p. 673-679.

Research output: Contribution to journal › Article › peer-review

@article{010ae340ff3c48589d607d81d650db85,

title = "Calculation of Uniform Corrosion Current Density of Iron in Hydrochloric Acid Solutions based on the Principle of Maximum Entropy Production Rate Applied to Literature Data",

abstract = "In this paper a new procedure for the calculation of uniform corrosion current density is presented. The procedure is based on the following criterion: corrosion current and extent of anodic and cathodic areas are such that the entropy production rate is maximum. Experimental data for the reaction Fe(s) + HCl(aq) = FeCl2(aq) + H2(g), taken from literature, are used to test the new model. A comparison between corrosion current density calculated from weight loss measurements and current density calculated from polarization curves by means of the proposed model is carried out. The proposed model provides a better agreement, between Tafel line extrapolation and gravimetric measurement, in comparison to the mixed potential theory usually adopted.",

keywords = "corrosion current density, entropy production rate, exchange current density, Tafel slope, uniform corrosion",

author = "Massimiliano Bestetti and Silvia Franz and Hashempour, {Mazdak I.} and Antonello Vicenzo",

year = "2018",

month = jul,

day = "1",

doi = "10.1134/S2070205118040160",

language = "English",

volume = "54",

pages = "673--679",

journal = "Protection of Metals and Physical Chemistry of Surfaces",

issn = "2070-206X",

publisher = "Springer Science + Business Media",

number = "4",

}

TY - JOUR

T1 - Calculation of Uniform Corrosion Current Density of Iron in Hydrochloric Acid Solutions based on the Principle of Maximum Entropy Production Rate Applied to Literature Data

AU - Bestetti, Massimiliano

AU - Franz, Silvia

AU - Hashempour, Mazdak I.

AU - Vicenzo, Antonello

PY - 2018/7/1

Y1 - 2018/7/1

N2 - In this paper a new procedure for the calculation of uniform corrosion current density is presented. The procedure is based on the following criterion: corrosion current and extent of anodic and cathodic areas are such that the entropy production rate is maximum. Experimental data for the reaction Fe(s) + HCl(aq) = FeCl2(aq) + H2(g), taken from literature, are used to test the new model. A comparison between corrosion current density calculated from weight loss measurements and current density calculated from polarization curves by means of the proposed model is carried out. The proposed model provides a better agreement, between Tafel line extrapolation and gravimetric measurement, in comparison to the mixed potential theory usually adopted.

AB - In this paper a new procedure for the calculation of uniform corrosion current density is presented. The procedure is based on the following criterion: corrosion current and extent of anodic and cathodic areas are such that the entropy production rate is maximum. Experimental data for the reaction Fe(s) + HCl(aq) = FeCl2(aq) + H2(g), taken from literature, are used to test the new model. A comparison between corrosion current density calculated from weight loss measurements and current density calculated from polarization curves by means of the proposed model is carried out. The proposed model provides a better agreement, between Tafel line extrapolation and gravimetric measurement, in comparison to the mixed potential theory usually adopted.

KW - corrosion current density

KW - entropy production rate

KW - exchange current density

KW - Tafel slope

KW - uniform corrosion

UR - http://www.scopus.com/inward/record.url?scp=85050563935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85050563935&partnerID=8YFLogxK

U2 - 10.1134/S2070205118040160

DO - 10.1134/S2070205118040160

M3 - Article

AN - SCOPUS:85050563935

VL - 54

SP - 673

EP - 679

JO - Protection of Metals and Physical Chemistry of Surfaces

JF - Protection of Metals and Physical Chemistry of Surfaces

SN - 2070-206X

IS - 4

ER -