On the diffusion in high-entropy alloys
By D. Beke, G. Erdélyi. Materials letters (General ed.), 2016
163 citations recorded by the source corpus.
Abstract In the present paper we analyze the diffusion coefficients, D, of the component elements, measured recently in CoCrFeMnNi high-entropy alloy. Our analysis, based on the use of the correct form of the well-known semi-empirical rules (law of corresponding states) i.e. plotting the logarithm of the normalized (dimensionless) value of D vs. the reduced temperature, confirms the sluggish character of the diffusion as compared to the pure reference metals, but this behavior can mostly be attributed to a more or less temperature independent factor in the diffusion coefficients i.e. to correlation effects rather than the higher activation energies.
Subfields: Aerospace Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/523cff82f1822045a7850c8af21f480d39023dc3
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Citations in the corpus
- High temperature oxidation behavior of an equimolar refractory metal-based alloy 20Nb-20Mo-20Cr-20Ti-20Al with and without Si addition (2016, background): “Regarding the microstructure, HEAs stand out due to their tendency to possess simple, highly symmetric crystal structures, which often lead to single-phase microstructures [3], to nanoparticles in the matrix [4] and to sluggish diffusion of elements [5-7].”
- Ni tracer diffusion in CoCrFeNi and CoCrFeMnNi high entropy alloys (2016, methodology): “Beke and Erdélyi [23] have r e-analyzed the data presented in [19] and indicated the role of the correlation factors t wards sluggish diffusion in HEAs.”
- The effect of submicron grain size on thermal stability and mechanical properties of high‐entropy carbide ceramics (2020, background): “suggest that the activation energy of diffusion in CoCrFeMnNi HEAs is higher than Ni or Fe due to the fluctuation of lattice potential energy that produces atomic traps leading to the sluggish diffusion (38).”