Effect of NaCl-MgCl2 complex on the corrosion behavior of carbon steel in wet/dry environment

Toshiyasu Nishimura, Hideki Katayama, Kazuhiko Noda, Toshiaki Kodama

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The iron rust phase has been analyzed by using the in-situ XRD and the alternating current (AC) impedance methods after wet/dry corrosion test using NaCl-MgCl2 complex which is main composition of airborne saline particles. The corrosion mass gain of the carbon steel depends on the concentration of Cl ion from environment in the test chamber, and it does not depend on the type of cations (NaCl or MgCl2). As the concentration of Cl ion increases, the content of β-FeOOH increases in iron rust phases. The transition of β-FeOOH from the green rust I (G.R.I) was observed directly by the in-situ XRD. The amount of G.R.I depends on the concentration of Cl ion, and β-FeOOH is transformed from G.R.I automatically in drying process, where there is no dependence of type of cations on the iron rust phase whichever cation Cl bonds with. It was found by the AC impedance that the resistance of the rust (Rrust) increases with the number of cycles in the corrosion test, and that the structural factor of the rust becomes predominant in Rrust. With the increase of the amount of rust, the resistance corresponding to corrosion rate (Rt) decreases, which is related to the reduction of β-FeOOH in rust phase.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalZairyo to Kankyo/ Corrosion Engineering
Volume49
Issue number1
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Magnesium Chloride
Carbon steel
Cations
Iron
Positive ions
Ions
Corrosion
Corrosion rate
Drying
Chemical analysis

ASJC Scopus subject areas

  • Energy (miscellaneous)
  • Mechanical Engineering
  • Metals and Alloys

Cite this

Effect of NaCl-MgCl2 complex on the corrosion behavior of carbon steel in wet/dry environment. / Nishimura, Toshiyasu; Katayama, Hideki; Noda, Kazuhiko; Kodama, Toshiaki.

In: Zairyo to Kankyo/ Corrosion Engineering, Vol. 49, No. 1, 2000, p. 45-51.

Research output: Contribution to journalArticle

Nishimura, Toshiyasu ; Katayama, Hideki ; Noda, Kazuhiko ; Kodama, Toshiaki. / Effect of NaCl-MgCl2 complex on the corrosion behavior of carbon steel in wet/dry environment. In: Zairyo to Kankyo/ Corrosion Engineering. 2000 ; Vol. 49, No. 1. pp. 45-51.
@article{3f0fde4607e04fe79d0acc874a98270d,
title = "Effect of NaCl-MgCl2 complex on the corrosion behavior of carbon steel in wet/dry environment",
abstract = "The iron rust phase has been analyzed by using the in-situ XRD and the alternating current (AC) impedance methods after wet/dry corrosion test using NaCl-MgCl2 complex which is main composition of airborne saline particles. The corrosion mass gain of the carbon steel depends on the concentration of Cl ion from environment in the test chamber, and it does not depend on the type of cations (NaCl or MgCl2). As the concentration of Cl ion increases, the content of β-FeOOH increases in iron rust phases. The transition of β-FeOOH from the green rust I (G.R.I) was observed directly by the in-situ XRD. The amount of G.R.I depends on the concentration of Cl ion, and β-FeOOH is transformed from G.R.I automatically in drying process, where there is no dependence of type of cations on the iron rust phase whichever cation Cl bonds with. It was found by the AC impedance that the resistance of the rust (Rrust) increases with the number of cycles in the corrosion test, and that the structural factor of the rust becomes predominant in Rrust. With the increase of the amount of rust, the resistance corresponding to corrosion rate (Rt) decreases, which is related to the reduction of β-FeOOH in rust phase.",
author = "Toshiyasu Nishimura and Hideki Katayama and Kazuhiko Noda and Toshiaki Kodama",
year = "2000",
language = "English",
volume = "49",
pages = "45--51",
journal = "Corrosion Engineering",
issn = "0917-0480",
publisher = "Japan Society of Corrosion Engineering",
number = "1",

}

TY - JOUR

T1 - Effect of NaCl-MgCl2 complex on the corrosion behavior of carbon steel in wet/dry environment

AU - Nishimura, Toshiyasu

AU - Katayama, Hideki

AU - Noda, Kazuhiko

AU - Kodama, Toshiaki

PY - 2000

Y1 - 2000

N2 - The iron rust phase has been analyzed by using the in-situ XRD and the alternating current (AC) impedance methods after wet/dry corrosion test using NaCl-MgCl2 complex which is main composition of airborne saline particles. The corrosion mass gain of the carbon steel depends on the concentration of Cl ion from environment in the test chamber, and it does not depend on the type of cations (NaCl or MgCl2). As the concentration of Cl ion increases, the content of β-FeOOH increases in iron rust phases. The transition of β-FeOOH from the green rust I (G.R.I) was observed directly by the in-situ XRD. The amount of G.R.I depends on the concentration of Cl ion, and β-FeOOH is transformed from G.R.I automatically in drying process, where there is no dependence of type of cations on the iron rust phase whichever cation Cl bonds with. It was found by the AC impedance that the resistance of the rust (Rrust) increases with the number of cycles in the corrosion test, and that the structural factor of the rust becomes predominant in Rrust. With the increase of the amount of rust, the resistance corresponding to corrosion rate (Rt) decreases, which is related to the reduction of β-FeOOH in rust phase.

AB - The iron rust phase has been analyzed by using the in-situ XRD and the alternating current (AC) impedance methods after wet/dry corrosion test using NaCl-MgCl2 complex which is main composition of airborne saline particles. The corrosion mass gain of the carbon steel depends on the concentration of Cl ion from environment in the test chamber, and it does not depend on the type of cations (NaCl or MgCl2). As the concentration of Cl ion increases, the content of β-FeOOH increases in iron rust phases. The transition of β-FeOOH from the green rust I (G.R.I) was observed directly by the in-situ XRD. The amount of G.R.I depends on the concentration of Cl ion, and β-FeOOH is transformed from G.R.I automatically in drying process, where there is no dependence of type of cations on the iron rust phase whichever cation Cl bonds with. It was found by the AC impedance that the resistance of the rust (Rrust) increases with the number of cycles in the corrosion test, and that the structural factor of the rust becomes predominant in Rrust. With the increase of the amount of rust, the resistance corresponding to corrosion rate (Rt) decreases, which is related to the reduction of β-FeOOH in rust phase.

UR - http://www.scopus.com/inward/record.url?scp=0033892526&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033892526&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0033892526

VL - 49

SP - 45

EP - 51

JO - Corrosion Engineering

JF - Corrosion Engineering

SN - 0917-0480

IS - 1

ER -