ArticleScientific reports2024
Nanoindentation into a bcc high-entropy HfNbTaTiZr alloy-an atomistic study of the effect of short-range order.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 18 citations in OpenAlex.
- Small-Scale Insight into Uniform Deformability and Softening Resistance of Refractory High-Entropy Alloy.Nano letters · 2026Article
- Reinforcing role of graphene in high entropy alloy matrix composites.Scientific reports · 2026Article
- Molecular dynamics-based explanation of the reinforcement geometry effects on CNT/graphene-reinforced AlScientific reports · 2025Article
- Article
- Chemical short-range order increases the phonon heat conductivity in a refractory high-entropy alloy.Scientific reports · 2024Article
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6 authors at 4 institutions in 3 countries.
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Abstract
The plastic response of the Senkov HfNbTaTiZr high-entropy alloy is explored by means of simulated nanoindentation tests. Both a random alloy and an alloy with chemical short-range order are investigated and compared to the well understood case of an elementary Ta crystal. Strong differences in the dislocation plasticity between the alloys and the elementary Ta crystal are found. The high-entropy alloys show only little relaxation of the indentation dislocation network after indenter retraction and only negligible dislocation emission into the sample interior. Short-range order-besides making the alloy both stiffer and harder-further increases the size of the plastic zone and the dislocation density there. These features are explained by the slow dislocation migration in these alloys. Also, the short-range-ordered alloy features no twinning plasticity in contrast to the random alloy, while elemental Ta exhibits twinning under high stress but detwins considerably under stress relief. The results are in good qualitative agreement with our current knowledge of plasticity in high-entropy alloys.
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