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Improved wear resistance in Zr20Nb15Ta10Cr10Ti45-xAlx RHEAs via Al induced Laves phase transformation and B2 phase precipitation
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DOI：10.1016/j.triboint.2026.112532.png)
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Abstract
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• Al addition induces B2 precipitation and C15 → C14 Laves transformation in RHEAs. • Uniform C14 Laves and B2 precipitates enhance the wear resistance of RHEAs. • Nanoindentation evaluates the contribution of each phase to wear resistance. • Dense Al2O3 + Ta2O5 composite glaze layer forms on the alloy at 800 °C. • Excessive Al causes brittleness and degrades wear resistance.
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