Characterisation of the deposition and protection performance of Zr conversion coatings on steel and zinc substrates using the response surface methodology

Kraš, Ana (author), Kramar, Davorin (author), Milošev, Ingrid (author)

The response surface methodology (RSM) was used to explore the experimental space, characterise the influence of deposition and drying conditions on corrosion resistance, and evaluate the interactions between these factors for zirconium conversion coatings on cold-rolled steel and zinc. A combination of non-electrochemical drop tests and electrochemical methods were utilised to evaluate corrosion resistance in a dilute Harrison's solution. The surface analysis confirmed the electrochemical results obtained under the conditions chosen by RSM. The uniform corrosion of both substrates guides the subsequent conversion process, while the best coating performance results from the interaction of pH, conversion time and bath concentration.

• Language: English
• Keywords: response surface methodology, conversion coatings, thermodynamic data, low alloy steel, zinc, EIS, response surface methodology
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 21 str.
• Numbering: Vol. 242, art. 112551
• PID: 20.500.12556/RUL-165175
• UDC: 620.1/.2
• ISSN on article: 1879-0496
• DOI: 10.1016/j.corsci.2024.112551
• COBISS.SI-ID: 216084739
• Publication date in RUL: 26.11.2024

Record is a part of a journal

• Title: Corrosion science
• Shortened title: Corros. sci.
• Publisher: Elsevier
• ISSN: 1879-0496
• COBISS.SI-ID: 21379350

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.

Secondary language

• Language: Slovenian
• Keywords: legirana jekla, cink, protikorozijska zaščita, premazi, prevleke, obloge, spektroskopija