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Volume 72, Issue 6
3 December 2025
Anti-Corrosion Methods and Materials Cover Image for Volume 72, Issue 6
Research Article| October 09 2025

Influence of Cr content in Fe/Cr alloys on the adsorption behaviour of Cl− ion in pH=2 acid solution

;
Bin Zhang
Institute of Metal Research, Chinese Academy of Sciences
, Shenyang,
China
, and JiHua Laboratory, Guangdong, China
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;
Aidi Wang
Shenyang National Laboratory for Materials Science,
Northeastern University
, Shenyang,
China
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;
Yu Cui
Shi-changxu Innovation Center for Advanced Materials,
Institute of Metal Research, Chinese Academy of Sciences
, Shenyang,
China
Corresponding author Yu Cui ycui@imr.ac.cn
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;
Tianshu Li
Institute of Metal Research,
Chinese Academy of Sciences
, Shenyang,
China
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;
Li Liu
Shenyang National Laboratory for Materials Science,
Northeastern University
, Shenyang,
China
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;
Ying Li
Institute of Metal Research,
Chinese Academy of Sciences
, Shenyang,
China
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Fuhui Wang
Shenyang National Laboratory for Materials Science, Northeastern University
, Shenyang,
China
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Author & Article Information
Corresponding author Yu Cui ycui@imr.ac.cn
Publisher: Emerald Publishing
Received: March 25 2024
Revision Received: May 22 2024
Accepted: May 22 2024
Online ISSN: 1758-4221
Print ISSN: 0003-5599
Funding
Funding Group:
  • Award Group:
    • Funder(s):
       National Natural Science Foundation of China under Contract
    • Award Id(s):
      No. 51271187
  • Award Group:
    • Funder(s):
       Jihua Laboratory Scientific Research Project
    • Award Id(s):
      X200191TL200
  • Funding Statement(s):
     The authors are grateful to Dr D. Chen, Solid Atomic Imaging Division, Institute of Metal Research, for providing computational resources and helpful discussions. The investigation is supported by the National Natural Science Foundation of China under Contract No. 51271187 and Jihua Laboratory Scientific Research Project (X200191TL200).
© 2025 Emerald Publishing Limited
2025
Emerald Publishing Limited
Licensed re-use rights only
Anti-Corrosion Methods and Materials (2025) 72 (6): 805–818.
https://doi.org/10.1108/ACMM-03-2024-2985
Article history
Received:
March 25 2024
Revision Received:
May 22 2024
Accepted:
May 22 2024
Purpose

The paper aims to investigate the effect of Cr content on Cl− adsorption behaviour.

Design/methodology/approach

The adsorption behaviour of Cl− on Fe-xCr (x = 10, 20, 30, 50, 75 At.%) alloys in HCl + NaCl solution (pH = 2, [Cl−] = 0.1 M) has been studied by electrochemical techniques, X-ray photoelectron spectroscopy and first-principle calculations.

Findings

The results show that both the adsorption energy and distance decreased with increasing Cr content, which shows the adsorption of Cl− is dependent on the amount of Cr present. Cr oxides of the passive films on Fe50Cr and Fe75Cr alloys inhibited the adsorption of Cl−.

Originality/value

Investigation of the relationship between the Cr content and the role of Cl− adsorption provides a reliable basis for the design of corrosion-resistant alloys.

Keywords: Fe-Cr alloy, Passivation, First-principle calculation, Corrosion
© 2025 Emerald Publishing Limited
2025
Emerald Publishing Limited
Licensed re-use rights only
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