Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructure

Saber Haratian; Kapil Kumar Gupta; Alfred Larsson; Giuseppe Abbondanza; Emad Hasan Bartawi; Francesco Carlà; Edvin Lundgren; Rajan Ambat

doi:10.1016/j.corsci.2023.111387

Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructure

Saber Haratian^*, Kapil Kumar Gupta, Alfred Larsson, Giuseppe Abbondanza, Emad Hasan Bartawi, Francesco Carlà, Edvin Lundgren, Rajan Ambat

^*Corresponding author for this work

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Abstract

The CO₂ corrosion-induced scale developed in the surface region of the low-grade carbon steel is thoroughly investigated to understand the corrosion mechanisms involved during exposure to CO₂-saturated aqueous environments. In this work, in addition to the electron microscopy and lab-source X-ray diffraction (XRD) methods, ex-situ depth-resolved phase identification of the corrosion scales developed on steel with different initial microstructures is performed using synchrotron grazing incidence XRD at different incidence angles. The CO₂ corrosion mechanism is discussed considering the observed distribution of the corrosion products formed at a different depth relative to the time of electrochemical exposure of the steels.

Original language	English
Article number	111387
Journal	Corrosion Science
Volume	222
Number of pages	13
ISSN	0010-938X
DOIs	https://doi.org/10.1016/j.corsci.2023.111387
Publication status	Published - 2023

Keywords

CO2 corrosion
Depth-resolved phase identification
Grazing incidence X-ray diffraction
Scaling

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title = "Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructure",

abstract = "The CO2 corrosion-induced scale developed in the surface region of the low-grade carbon steel is thoroughly investigated to understand the corrosion mechanisms involved during exposure to CO2-saturated aqueous environments. In this work, in addition to the electron microscopy and lab-source X-ray diffraction (XRD) methods, ex-situ depth-resolved phase identification of the corrosion scales developed on steel with different initial microstructures is performed using synchrotron grazing incidence XRD at different incidence angles. The CO2 corrosion mechanism is discussed considering the observed distribution of the corrosion products formed at a different depth relative to the time of electrochemical exposure of the steels.",

keywords = "CO2 corrosion, Depth-resolved phase identification, Grazing incidence X-ray diffraction, Scaling",

author = "Saber Haratian and Gupta, {Kapil Kumar} and Alfred Larsson and Giuseppe Abbondanza and Bartawi, {Emad Hasan} and Francesco Carl{\`a} and Edvin Lundgren and Rajan Ambat",

year = "2023",

doi = "10.1016/j.corsci.2023.111387",

language = "English",

volume = "222",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

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T1 - Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructure

AU - Haratian, Saber

AU - Gupta, Kapil Kumar

AU - Larsson, Alfred

AU - Abbondanza, Giuseppe

AU - Bartawi, Emad Hasan

AU - Carlà, Francesco

AU - Lundgren, Edvin

AU - Ambat, Rajan

PY - 2023

Y1 - 2023

N2 - The CO2 corrosion-induced scale developed in the surface region of the low-grade carbon steel is thoroughly investigated to understand the corrosion mechanisms involved during exposure to CO2-saturated aqueous environments. In this work, in addition to the electron microscopy and lab-source X-ray diffraction (XRD) methods, ex-situ depth-resolved phase identification of the corrosion scales developed on steel with different initial microstructures is performed using synchrotron grazing incidence XRD at different incidence angles. The CO2 corrosion mechanism is discussed considering the observed distribution of the corrosion products formed at a different depth relative to the time of electrochemical exposure of the steels.

AB - The CO2 corrosion-induced scale developed in the surface region of the low-grade carbon steel is thoroughly investigated to understand the corrosion mechanisms involved during exposure to CO2-saturated aqueous environments. In this work, in addition to the electron microscopy and lab-source X-ray diffraction (XRD) methods, ex-situ depth-resolved phase identification of the corrosion scales developed on steel with different initial microstructures is performed using synchrotron grazing incidence XRD at different incidence angles. The CO2 corrosion mechanism is discussed considering the observed distribution of the corrosion products formed at a different depth relative to the time of electrochemical exposure of the steels.

KW - CO2 corrosion

KW - Depth-resolved phase identification

KW - Grazing incidence X-ray diffraction

KW - Scaling

U2 - 10.1016/j.corsci.2023.111387

DO - 10.1016/j.corsci.2023.111387

M3 - Journal article

SN - 0010-938X

VL - 222

JO - Corrosion Science

JF - Corrosion Science

M1 - 111387

ER -

Ex‐situ synchrotron X‐ray diffraction study of CO2 corrosion‐induced surface scales developed in low‐alloy steel with different initial microstructure

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