Publication detail

Corrosion of low-carbon steel in sodium chloride solution containing a water-soluble fraction of humic acid

DOSKOČIL, L. HORÁK, T. HONČ, J.

Original Title

Corrosion of low-carbon steel in sodium chloride solution containing a water-soluble fraction of humic acid

Type

conference paper

Language

English

Original Abstract

Humic acids are a heterogeneous mixture of organic compounds that are naturally found in water and soil. In recent years, there has been a growing interest in the application of green fertilizers containing humic acids in agricultural activities. Water-soluble fraction of humic acid (WSHA) can be released from these fertilizers and subsequently interact with metallic materials (e.g. steel) located in soils and waters. WSHA were leached from an aqueous suspension of humic acids isolated from South Moravian lignite. Corrosion tests were performed on a low-carbon steel using a potentiodynamic polarization test and electrochemical impedance spectrometry. Results suggest that corrosion was initially promoted due to the formation of complex compounds of water-soluble humic acids with released iron ions. After a long time, a positive effect of WSHA was observed as the corrosion resistance of low-carbon steel increased.

Keywords

corrosion, low-carbon steel, humic acid

Authors

DOSKOČIL, L.; HORÁK, T.; HONČ, J.

Released

23. 2. 2022

Publisher

Tanger

Location

Brno

ISBN

978-80-87294-99-4

Book

METAL 2021 - 30th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings

Pages from

766

Pages to

771

Pages count

6

URL

https://www.confer.cz/metal/2021/4180-corrosion-of-low-carbon-steel-in-sodium-chloride-solution-containing-a-water-soluble-fraction-of-humic-acids

Full text in the Digital Library

http://hdl.handle.net/11012/203941

BibTex

@inproceedings{BUT176736,
  author="Leoš {Doskočil} and Tomáš {Horák} and Jiří {Honč}",
  title="Corrosion of low-carbon steel in sodium chloride solution containing a water-soluble fraction of humic acid",
  booktitle="METAL 2021 - 30th Anniversary International Conference on Metallurgy and Materials, Conference Proceedings",
  year="2022",
  pages="766--771",
  publisher="Tanger",
  address="Brno",
  doi="10.37904/metal.2021.4180",
  isbn="978-80-87294-99-4",
  url="https://www.confer.cz/metal/2021/4180-corrosion-of-low-carbon-steel-in-sodium-chloride-solution-containing-a-water-soluble-fraction-of-humic-acids"
}