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Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding
Research Article  ·  Published: 12 August 2026
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Journal of Materials Durability and Engineering
Volume 1, Issue 1, 2025: 23-34
Research Article Open Access

Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding

by
Hao Zhang Hao Zhang 1 * ORCID
Mengying Qiao Mengying Qiao 1
Xiujie Yue Xiujie Yue 1
Miaomiao Xin Miaomiao Xin 1
1 Research Institute for Reliability Manufacturing of Intelligent High-End Equipment, Qilu Institute of Technology, Jinan 250200, China
* Corresponding Author: Hao Zhang, [email protected]
Volume 1, Issue 1
Volume 1, Issue 1 2025
Received: 26 November 2025 Revised: 26 December 2025 Accepted: 06 January 2026 Published: 12 August 2026 CrossMark
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DOI: 10.62762/JMDE.2025.161346
ARK: ark:/57805/jmde.2025.161346

Article Information

Published in Journal of Materials Durability and Engineering
Volume/Issue Volume 1, Issue 1, 2025
Pages 23-34

Abstract

High-entropy alloy (HEA) coatings have become a candidate for corrosion protection of marine engineering equipment in harsh service environments. In this paper, the effect of laser scanning power on the microstructure and electrochemical corrosion resistance of HEA coating prepared by Extremely High-speed Laser Cladding (EHLC) was investigated. The coating was prepared by EHLC technology. The microstructure of the coating was characterized by XRD and SEM. The corrosion resistance of the coating in \(3.5\%\) NaCl solution was investigated by electrochemical measurement. The results show that: With the increase of scanning power, the sputtered particles of the coating decreased, but the surface roughness increased. The coating was composed of FCC+BCC phases; the \(\sigma\) phase appeared at \(200\,\mathrm{W}\) and disappeared at \(250\,\mathrm{W}\), and the lattice expanded with the increase of scanning power. The corrosion resistance test showed that the corrosion resistance of the coating at \(200\,\mathrm{W}\) was the best (\(E_{\mathrm{corr}} = -0.69\,\mathrm{V}\), \(I_{\mathrm{corr}} = 6.29 \times 10^{-6}\,\mathrm{A/cm^{2}}\), \(R_{p} = 5631.67\,\Omega\cdot\mathrm{cm^{2}}\) and \(R_{\mathrm{ct}} = 3030.00\,\Omega\cdot\mathrm{cm^{2}}\), respectively), followed by \(250\,\mathrm{W}\) and \(150\,\mathrm{W}\). The microstructure uniformity of the coating can be optimized by moderately increasing the scanning power (\(200\,\mathrm{W}\)), and the corrosion resistance of the coating can be significantly improved, which provides a process guide for the preparation of protective coatings for offshore engineering equipment.

Graphical Abstract

Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding

Keywords

extremely high-speed laser cladding high entropy alloy coatings scanning power microstructure corrosion resistance

Data Availability Statement

Data will be made available on request.

Funding

This work was supported by the Research Program of Qilu Institute of Technology, China under Grant QIT25TP032.

Conflicts of Interest

The authors declare no conflicts of interest.

AI Use Statement

The authors declare that no generative AI was used in the preparation of this manuscript.

Ethical Approval and Consent to Participate

Not applicable.

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APA Style
Zhang, H., Qiao, M., Yue, X., & Xin, M. (2026). Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding. Journal of Materials Durability and Engineering, 1(1), 23-34. https://doi.org/10.62762/JMDE.2025.161346
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TY  - JOUR
AU  - Zhang, Hao
AU  - Qiao, Mengying
AU  - Yue, Xiujie
AU  - Xin, Miaomiao
PY  - 2026
DA  - 2026/08/12
TI  - Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding
JO  - Journal of Materials Durability and Engineering
T2  - Journal of Materials Durability and Engineering
JF  - Journal of Materials Durability and Engineering
VL  - 1
IS  - 1
SP  - 23
EP  - 34
DO  - 10.62762/JMDE.2025.161346
UR  - https://www.icck.org/article/abs/JMDE.2025.161346
KW  - extremely high-speed laser cladding
KW  - high entropy alloy coatings
KW  - scanning power
KW  - microstructure
KW  - corrosion resistance
AB  - High-entropy alloy (HEA) coatings have become a candidate for corrosion protection of marine engineering equipment in harsh service environments. In this paper, the effect of laser scanning power on the microstructure and electrochemical corrosion resistance of HEA coating prepared by Extremely High-speed Laser Cladding (EHLC) was investigated. The coating was prepared by EHLC technology. The microstructure of the coating was characterized by XRD and SEM. The corrosion resistance of the coating in \(3.5\%\) NaCl solution was investigated by electrochemical measurement. The results show that: With the increase of scanning power, the sputtered particles of the coating decreased, but the surface roughness increased. The coating was composed of FCC+BCC phases; the \(\sigma\) phase appeared at \(200\,\mathrm{W}\) and disappeared at \(250\,\mathrm{W}\), and the lattice expanded with the increase of scanning power. The corrosion resistance test showed that the corrosion resistance of the coating at \(200\,\mathrm{W}\) was the best (\(E_{\mathrm{corr}} = -0.69\,\mathrm{V}\), \(I_{\mathrm{corr}} = 6.29 \times 10^{-6}\,\mathrm{A/cm^{2}}\), \(R_{p} = 5631.67\,\Omega\cdot\mathrm{cm^{2}}\) and \(R_{\mathrm{ct}} = 3030.00\,\Omega\cdot\mathrm{cm^{2}}\), respectively), followed by \(250\,\mathrm{W}\) and \(150\,\mathrm{W}\). The microstructure uniformity of the coating can be optimized by moderately increasing the scanning power (\(200\,\mathrm{W}\)), and the corrosion resistance of the coating can be significantly improved, which provides a process guide for the preparation of protective coatings for offshore engineering equipment.
SN  - pending
PB  - Institute of Central Computation and Knowledge
LA  - English
ER  -
BibTeX Format
Compatible with LaTeX, BibTeX, and other reference managers
@article{Zhang2026Effect,
  author = {Hao Zhang and Mengying Qiao and Xiujie Yue and Miaomiao Xin},
  title = {Effect of Scanning Power on Electrochemical Corrosion Properties of AlCoCrFeNi High Entropy Alloy Coating Melted by Extremely High-speed Laser Cladding},
  journal = {Journal of Materials Durability and Engineering},
  year = {2026},
  volume = {1},
  number = {1},
  pages = {23-34},
  doi = {10.62762/JMDE.2025.161346},
  url = {https://www.icck.org/article/abs/JMDE.2025.161346},
  abstract = {High-entropy alloy (HEA) coatings have become a candidate for corrosion protection of marine engineering equipment in harsh service environments. In this paper, the effect of laser scanning power on the microstructure and electrochemical corrosion resistance of HEA coating prepared by Extremely High-speed Laser Cladding (EHLC) was investigated. The coating was prepared by EHLC technology. The microstructure of the coating was characterized by XRD and SEM. The corrosion resistance of the coating in \(3.5\\%\) NaCl solution was investigated by electrochemical measurement. The results show that: With the increase of scanning power, the sputtered particles of the coating decreased, but the surface roughness increased. The coating was composed of FCC+BCC phases; the \(\sigma\) phase appeared at \(200\,\mathrm{W}\) and disappeared at \(250\,\mathrm{W}\), and the lattice expanded with the increase of scanning power. The corrosion resistance test showed that the corrosion resistance of the coating at \(200\,\mathrm{W}\) was the best (\(E\_{\mathrm{corr}} = -0.69\,\mathrm{V}\), \(I\_{\mathrm{corr}} = 6.29 \times 10^{-6}\,\mathrm{A/cm^{2}}\), \(R\_{p} = 5631.67\,\Omega\cdot\mathrm{cm^{2}}\) and \(R\_{\mathrm{ct}} = 3030.00\,\Omega\cdot\mathrm{cm^{2}}\), respectively), followed by \(250\,\mathrm{W}\) and \(150\,\mathrm{W}\). The microstructure uniformity of the coating can be optimized by moderately increasing the scanning power (\(200\,\mathrm{W}\)), and the corrosion resistance of the coating can be significantly improved, which provides a process guide for the preparation of protective coatings for offshore engineering equipment.},
  keywords = {extremely high-speed laser cladding, high entropy alloy coatings, scanning power, microstructure, corrosion resistance},
  issn = {pending},
  publisher = {Institute of Central Computation and Knowledge}
}

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