Inhibition of mild steel by strontium chromate in artificial acid rain solution

I. M. Baghni; S. B. Lyon

doi:10.1179/174327805X46995

Inhibition of mild steel by strontium chromate in artificial acid rain solution

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

Abstract

The inhibition of mild steel in an artificial acid rain solution (pH 4-5) in low concentrations of strontium chromate pigment has been evaluated using a range of methods: potentiodynamic polarisation, electrochemical impedance, X-ray photoelectron spectroscopy and solution analysis. The individual effects of strontium and chromate have been evaluated and have been used to estimate inhibitor efficiency and film composition, and to determine the possible inhibition mechanism. The results show that, at low concentration, strontium chromate affects the cathodic reaction, with reduction of Cr6+ to Cr3+, and the surface film was composed of magnetite and hydrated chromium hydroxide. The presence of strontium was not found significantly to affect the inhibitory performance. © 2005 Institute of Materials, Minerals and Mining.

Original language	English
Pages (from-to)	165-170
Number of pages	5
Journal	Corrosion Engineering Science and Technology
Volume	40
Issue number	2
DOIs	https://doi.org/10.1179/174327805X46995
Publication status	Published - Jun 2005

Keywords

Acid rain
Chromate Inhibitor pigments
Impedance
Inhibition
Steel

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10.1179/174327805X46995

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title = "Inhibition of mild steel by strontium chromate in artificial acid rain solution",

abstract = "The inhibition of mild steel in an artificial acid rain solution (pH 4-5) in low concentrations of strontium chromate pigment has been evaluated using a range of methods: potentiodynamic polarisation, electrochemical impedance, X-ray photoelectron spectroscopy and solution analysis. The individual effects of strontium and chromate have been evaluated and have been used to estimate inhibitor efficiency and film composition, and to determine the possible inhibition mechanism. The results show that, at low concentration, strontium chromate affects the cathodic reaction, with reduction of Cr6+ to Cr3+, and the surface film was composed of magnetite and hydrated chromium hydroxide. The presence of strontium was not found significantly to affect the inhibitory performance. {\textcopyright} 2005 Institute of Materials, Minerals and Mining.",

keywords = "Acid rain, Chromate Inhibitor pigments, Impedance, Inhibition, Steel",

author = "Baghni, {I. M.} and Lyon, {S. B.}",

year = "2005",

month = jun,

doi = "10.1179/174327805X46995",

language = "English",

volume = "40",

pages = "165--170",

journal = "Corrosion Engineering Science and Technology",

issn = "1743-2782",

publisher = "Taylor & Francis",

number = "2",

}

TY - JOUR

T1 - Inhibition of mild steel by strontium chromate in artificial acid rain solution

AU - Baghni, I. M.

AU - Lyon, S. B.

PY - 2005/6

Y1 - 2005/6

N2 - The inhibition of mild steel in an artificial acid rain solution (pH 4-5) in low concentrations of strontium chromate pigment has been evaluated using a range of methods: potentiodynamic polarisation, electrochemical impedance, X-ray photoelectron spectroscopy and solution analysis. The individual effects of strontium and chromate have been evaluated and have been used to estimate inhibitor efficiency and film composition, and to determine the possible inhibition mechanism. The results show that, at low concentration, strontium chromate affects the cathodic reaction, with reduction of Cr6+ to Cr3+, and the surface film was composed of magnetite and hydrated chromium hydroxide. The presence of strontium was not found significantly to affect the inhibitory performance. © 2005 Institute of Materials, Minerals and Mining.

AB - The inhibition of mild steel in an artificial acid rain solution (pH 4-5) in low concentrations of strontium chromate pigment has been evaluated using a range of methods: potentiodynamic polarisation, electrochemical impedance, X-ray photoelectron spectroscopy and solution analysis. The individual effects of strontium and chromate have been evaluated and have been used to estimate inhibitor efficiency and film composition, and to determine the possible inhibition mechanism. The results show that, at low concentration, strontium chromate affects the cathodic reaction, with reduction of Cr6+ to Cr3+, and the surface film was composed of magnetite and hydrated chromium hydroxide. The presence of strontium was not found significantly to affect the inhibitory performance. © 2005 Institute of Materials, Minerals and Mining.

KW - Acid rain

KW - Chromate Inhibitor pigments

KW - Impedance

KW - Inhibition

KW - Steel

U2 - 10.1179/174327805X46995

DO - 10.1179/174327805X46995

M3 - Article

SN - 1743-2782

VL - 40

SP - 165

EP - 170

JO - Corrosion Engineering Science and Technology

JF - Corrosion Engineering Science and Technology

IS - 2

ER -

Inhibition of mild steel by strontium chromate in artificial acid rain solution

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Keywords

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