Structural properties of iron phases formed on low alloy steels immersed in sodium chloride-rich solutions

F. R. Pérez; C. A. Barrero; O. Arnache; L. C. Sánchez; K. E. García; A. R. Hight Walker

doi:10.1016/j.physb.2008.12.020

Structural properties of iron phases formed on low alloy steels immersed in sodium chloride-rich solutions

F. R. Pérez, C. A. Barrero, O. Arnache, L. C. Sánchez, K. E. García, A. R. Hight Walker

Research output: Contribution to journal › Article in an indexed scientific journal › peer-review

12 Scopus citations

Abstract

Products of corrosion were obtained from low alloy steels submitted to total immersion tests in solutions containing sodium chloride at different concentrations, during seven days. In order to properly characterize the adherent (AR) and the non-adherent rusts (NAR), a methodology including room temperature Mössbauer spectrometry, diffuse reflectance infrared Fourier transform spectroscopy, Raman spectroscopy, scanning electron microscopy and X-ray diffraction was addressed. The techniques showed that the AR samples were composed of non-stoichiometric magnetite, goethite, akaganeite and lepidocrocite. The composition of the NAR samples was the same, but with very small amounts of magnetite. Different cell parameters and mean crystallite sizes were found for all phases presented in AR and the NAR samples. The corrosion rates were higher than 580 μm/y. The ratio of the abundances of goethite to the sum of lepidocrocite, akaganeite and magnetite were less than one.

Original language	English
Pages (from-to)	1347-1353
Number of pages	7
Journal	Physica B: Condensed Matter
Volume	404
Issue number	8-11
DOIs	https://doi.org/10.1016/j.physb.2008.12.020
State	Published - 1 May 2009

Bibliographical note

Funding Information:
Authors greatly acknowledge to CODI-Universidad de Antioquia (Projects E01248CE and Sustainability Programs during 2007–2008 for both the Solid State and the Scientific Instrumentation and Microelectronic Groups) and CIDI-Universidad Pontificia Bolivariana (Project 889-05/06-27) for financial support. Thanks go to M. Pérez of Universidad Nacional of Colombia Sede-Medellín for the SEM measurements.

Keywords

Corrosion and protection
Mössbauer spectrometry
Raman and infrared spectroscopy
X-ray diffraction

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10.1016/j.physb.2008.12.020

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title = "Structural properties of iron phases formed on low alloy steels immersed in sodium chloride-rich solutions",

abstract = "Products of corrosion were obtained from low alloy steels submitted to total immersion tests in solutions containing sodium chloride at different concentrations, during seven days. In order to properly characterize the adherent (AR) and the non-adherent rusts (NAR), a methodology including room temperature M{\"o}ssbauer spectrometry, diffuse reflectance infrared Fourier transform spectroscopy, Raman spectroscopy, scanning electron microscopy and X-ray diffraction was addressed. The techniques showed that the AR samples were composed of non-stoichiometric magnetite, goethite, akaganeite and lepidocrocite. The composition of the NAR samples was the same, but with very small amounts of magnetite. Different cell parameters and mean crystallite sizes were found for all phases presented in AR and the NAR samples. The corrosion rates were higher than 580 μm/y. The ratio of the abundances of goethite to the sum of lepidocrocite, akaganeite and magnetite were less than one.",

keywords = "Corrosion and protection, M{\"o}ssbauer spectrometry, Raman and infrared spectroscopy, X-ray diffraction",

author = "P{\'e}rez, {F. R.} and Barrero, {C. A.} and O. Arnache and S{\'a}nchez, {L. C.} and Garc{\'i}a, {K. E.} and {Hight Walker}, {A. R.}",

note = "Funding Information: Authors greatly acknowledge to CODI-Universidad de Antioquia (Projects E01248CE and Sustainability Programs during 2007–2008 for both the Solid State and the Scientific Instrumentation and Microelectronic Groups) and CIDI-Universidad Pontificia Bolivariana (Project 889-05/06-27) for financial support. Thanks go to M. P{\'e}rez of Universidad Nacional of Colombia Sede-Medell{\'i}n for the SEM measurements.",

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AU - Pérez, F. R.

AU - Barrero, C. A.

AU - Arnache, O.

AU - Sánchez, L. C.

AU - García, K. E.

AU - Hight Walker, A. R.

N1 - Funding Information: Authors greatly acknowledge to CODI-Universidad de Antioquia (Projects E01248CE and Sustainability Programs during 2007–2008 for both the Solid State and the Scientific Instrumentation and Microelectronic Groups) and CIDI-Universidad Pontificia Bolivariana (Project 889-05/06-27) for financial support. Thanks go to M. Pérez of Universidad Nacional of Colombia Sede-Medellín for the SEM measurements.

PY - 2009/5/1

Y1 - 2009/5/1

N2 - Products of corrosion were obtained from low alloy steels submitted to total immersion tests in solutions containing sodium chloride at different concentrations, during seven days. In order to properly characterize the adherent (AR) and the non-adherent rusts (NAR), a methodology including room temperature Mössbauer spectrometry, diffuse reflectance infrared Fourier transform spectroscopy, Raman spectroscopy, scanning electron microscopy and X-ray diffraction was addressed. The techniques showed that the AR samples were composed of non-stoichiometric magnetite, goethite, akaganeite and lepidocrocite. The composition of the NAR samples was the same, but with very small amounts of magnetite. Different cell parameters and mean crystallite sizes were found for all phases presented in AR and the NAR samples. The corrosion rates were higher than 580 μm/y. The ratio of the abundances of goethite to the sum of lepidocrocite, akaganeite and magnetite were less than one.

AB - Products of corrosion were obtained from low alloy steels submitted to total immersion tests in solutions containing sodium chloride at different concentrations, during seven days. In order to properly characterize the adherent (AR) and the non-adherent rusts (NAR), a methodology including room temperature Mössbauer spectrometry, diffuse reflectance infrared Fourier transform spectroscopy, Raman spectroscopy, scanning electron microscopy and X-ray diffraction was addressed. The techniques showed that the AR samples were composed of non-stoichiometric magnetite, goethite, akaganeite and lepidocrocite. The composition of the NAR samples was the same, but with very small amounts of magnetite. Different cell parameters and mean crystallite sizes were found for all phases presented in AR and the NAR samples. The corrosion rates were higher than 580 μm/y. The ratio of the abundances of goethite to the sum of lepidocrocite, akaganeite and magnetite were less than one.

KW - Corrosion and protection

KW - Mössbauer spectrometry

KW - Raman and infrared spectroscopy

KW - X-ray diffraction

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M3 - Artículo en revista científica indexada

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SN - 0921-4526

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 8-11

ER -

Structural properties of iron phases formed on low alloy steels immersed in sodium chloride-rich solutions

Abstract

Bibliographical note

Keywords

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