The impact of the microstructure of Fe-16Cr-0.2C on high-temperature oxidation – sulphidation in SO2

Florian Falk; Oded Sobol; Christiane Stephan-Scherb

doi:10.1016/j.corsci.2021.109618

The impact of the microstructure of Fe-16Cr-0.2C on high-temperature oxidation – sulphidation in SO₂

Florian Falk, Oded Sobol, Christiane Stephan-Scherb

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

5 Scopus citations

Abstract

This study elucidates the impact of the microstructure of Fe-16Cr-0.2C on oxide layer formation at 650 °C in Ar-0.5 % SO₂. A cold-rolled and two heat-treated states of the alloy were exposed for up to 1000 h. The samples were characterised in detail from microstructural and chemical perspectives using scanning electron microscopy (SEM), X-ray diffraction (XRD) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The microstructural modification of the alloy by heat-treatment was advantageous. It was found that Cr-carbides support chromia formation and reduce sulphidation when their area fraction is low and diameter is small.

Original language	English
Article number	109618
Journal	Corrosion Science
Volume	190
DOIs	https://doi.org/10.1016/j.corsci.2021.109618
State	Published - 1 Sep 2021
Externally published	Yes

Keywords

A. Iron
A. Steel
B. SEM
B. SIMS
C. High-temperature corrosion
C. Oxidation
C. Sulphidation

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.corsci.2021.109618

Cite this

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title = "The impact of the microstructure of Fe-16Cr-0.2C on high-temperature oxidation – sulphidation in SO2",

abstract = "This study elucidates the impact of the microstructure of Fe-16Cr-0.2C on oxide layer formation at 650 °C in Ar-0.5 % SO2. A cold-rolled and two heat-treated states of the alloy were exposed for up to 1000 h. The samples were characterised in detail from microstructural and chemical perspectives using scanning electron microscopy (SEM), X-ray diffraction (XRD) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The microstructural modification of the alloy by heat-treatment was advantageous. It was found that Cr-carbides support chromia formation and reduce sulphidation when their area fraction is low and diameter is small.",

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AU - Sobol, Oded

AU - Stephan-Scherb, Christiane

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AB - This study elucidates the impact of the microstructure of Fe-16Cr-0.2C on oxide layer formation at 650 °C in Ar-0.5 % SO2. A cold-rolled and two heat-treated states of the alloy were exposed for up to 1000 h. The samples were characterised in detail from microstructural and chemical perspectives using scanning electron microscopy (SEM), X-ray diffraction (XRD) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The microstructural modification of the alloy by heat-treatment was advantageous. It was found that Cr-carbides support chromia formation and reduce sulphidation when their area fraction is low and diameter is small.

KW - A. Iron

KW - A. Steel

KW - B. SEM

KW - B. SIMS

KW - C. High-temperature corrosion

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KW - C. Sulphidation

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