Cross Scale Tribological Behavior of Textured High-Entropy Alloy Coatings

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Abstract
This paper presents a cross-scale model for predicting the tribological behavior of textured coatings made of high-entropy alloys. The research methodology includes molecular dynamic modeling, a modified fractal surface model, and the Green’s method with fast Fourier transform. The main results demonstrate the existence of an optimal range of parameters: a fractal dimension of 2.45–2.55 and a texturing density of 15–20%, which reduces the coefficient of friction to 40% compared with untextured surfaces. The practical significance of the work lies in the creation of a theoretical basis for the integrated design and forecasting of the tribological properties of high-entropy coatings.
Funding Information
  • National Natural Science Foundation of Henan (262300420036)
  • Henan Provincial Department of Science and Technology Research Project (242102220075)
  • Key Research Project for Higher Education of Henan (24A460002)

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