Surface characteristic of corroded cold-formed thin-walled steel in industrial environments
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 27 July 2023
Issue publication date: 2 August 2023
Abstract
Purpose
This paper aims to investigate the evolution law of surface characteristic of corroded cold-formed thin-walled steel in industrial environments.
Design/methodology/approach
Five test specimens sourced from cold-formed thin-walled C-shaped steel that have been in service for three years in actual industrial environments were subjected to surface characteristic test. The surface characteristic of corroded hot-rolled steel and cold-formed steel were compared and analyzed. The relationship between the surface morphology parameters and the average corrosion depth was established.
Findings
The evolution law of the surface morphology of corroded cold-formed thin-walled steel and corroded hot-rolled steel was similar. The frequency histogram of corrosion depth was mainly single peak with high values on the middle and low values on both sides. The corrosion depth conformed to the normal distribution. The roughness average height and the root mean square of surface height gradually increased linearly with increasing the average corrosion depth.
Originality/value
The reduction in the standard deviation of corrosion depth, the maximum corrosion depth, the roughness average height and the root mean square of surface height of the cold-formed thin-walled steel was smaller than those of the hot-rolled steel.
Keywords
Acknowledgements
This work was supported by the Jiangxi Provincial Natural Science Foundation with Grant No. 20224BAB214067, the Science and Technology Research Project of Jiangxi Provincial Department of Education with Grant No. GJJ2200664 and Shanxi Science Fund for Distinguished Young Scholars (2018JC-025).
Citation
Fan, L. and Nie, B. (2023), "Surface characteristic of corroded cold-formed thin-walled steel in industrial environments", Anti-Corrosion Methods and Materials, Vol. 70 No. 5, pp. 284-293. https://doi.org/10.1108/ACMM-06-2023-2843
Publisher
:Emerald Publishing Limited
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