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Effect of W content on the microstructure, tribological behavior and corrosion resistance of laser-clad TiNbVZr0.5WX refractory high-entropy alloy coatings
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DOI：10.1016/j.intermet.2026.109440.png)
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Abstract
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• TiNbVZr0.5WX RHEA coatings were prepared on TC4 substrate by laser cladding. • W addition induces multiphase (BCC + Zr-rich HCP + V2Zr Laves) and grain refinement. • The friction coefficient first decreases then increases with W; wear modes are adhesive, oxidative, abrasive; W1 hardness reaches 794 HV. • A small amount of element W promotes the formation of a more stable passivation film.
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