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August 6, 2026Journal of Measurements in EngineeringOpen Access

Microstructural evolution and corrosion resistance of CoCuNiTiX0.6 (X = Mn, Al) HEA coatings on the 45-steel substrate

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Authors

MMMingxing MaYLYanan LiCZChengjun Zhu

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Overview

Randomized trial evaluates corrosion resistance of dual-phase HEA coatings on steel, suggesting better protective qualities for certain compositions.

Key Points

  • This research aims to investigate the microstructural evolution and corrosion resistance of CoCuNiTiX0.6 HEA coatings.
  • Laser cladding technology was used to prepare CoCuNiTiX 0.6 coatings on a 45-steel substrate.
  • Microstructural and composition analyses were conducted using X-ray diffractometer, OM, SEM, EDS, and ECW.
  • Corrosion resistance was evaluated in a 3.5wt% NaCl solution.
  • CoCuNiTiMn 0.6 exhibits both FCC and BCC phases, while CoCuNiTiAl 0.6 predominantly shows BCC phase.
  • CoCuNiTiAl 0.6 demonstrates superior corrosion resistance due to a dense passivation film and fewer defects.
  • Both alloys display dendritic structures, with a significant difference in atomic diffusion resistance observed in the Mn alloy.

Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/6a7437ab764cddc9499d5220https://doi.org/10.21595/jme.2026.25991
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