Investigating the kinetics of layer development during the color etching of low-carbon steel with in-situ spectroscopic ellipsometry.

József Bálint Renkó, Alekszej Romanenko, Tamás Bíró, Péter János Szabó, Péter Petrik, Attila Bonyár

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Article in Heliyon, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

József Bálint RenkóDepartment of Materials Science and Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, H-1111, Budapest, Bertalan Lajos street 7, Hungary.

Alekszej RomanenkoInstitute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly Thege Str. 29-33, 1121, Budapest, Hungary.

Tamás BíróDepartment of Materials Science and Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, H-1111, Budapest, Bertalan Lajos street 7, Hungary.

Péter János SzabóDepartment of Materials Science and Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, H-1111, Budapest, Bertalan Lajos street 7, Hungary.

Péter PetrikInstitute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly Thege Str. 29-33, 1121, Budapest, Hungary.

Attila BonyárDepartment of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, H-1111, Budapest, Egry József street 18, Hungary.

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6 · The paper itself

Abstract

Color etching is a useful corrosive process, widely applied in metallography to study the microstructure of metals. To prove the existence of the previously hypothesized steady-state etching rate, in-situ investigations were performed with spectroscopic ellipsometry during the color etching of ferritic materials. Kinetic information regarding the refractive index, extinction coefficient, and layer thickness were used to calculate the steady-state layer buildup rate, which was 1.90 ± 0.15 nm/s for low-carbon steel and 0.99 ± 0.06 nm/s for cast iron owing to its better corrosion resistance. The presented methodology and findings could help understanding other processes that involve the development of layers on metallic surfaces.

Indexed as

Beraha˗IColor etchingIn-situLayer development kineticsOptical microscopySpectroscopic ellipsometry

Identifiers

PMID38333814

DOI10.1016/j.heliyon.2024.e25271

PMCPMC10850525

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