What is it about?
High Entropy alloys are described as a new way to design alloys looking on purpose for very concentrated alloys. The community attributes some special properties, sometimes almost magical, to these alloys, among them the supposed decrease in solid state diffusivity, a process known as "sluggish diffusion" effect. In this work we postulate that any possible effect on the diffusion would be due to the intrinsic complexity of thermodynamics in these concentrated alloys.
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Why is it important?
Correcting the model is important to understand how a given phenomenon can be intentionally used by technology. A correct explanation also help understand when experimental results are wrongfully interpreted, as in the present case.
Perspectives
It was a pleasure to work together with Raymundo and with John, I learned a lot with them, also this work features Matheus, who works with me in many articles and is a young and bright researcher. He will surely be very important to materials science in the future and his contributions to this work were noticeable.
Professor Claudio Geraldo Schön
Universidade de Sao Paulo Campus da Capital
Read the Original
This page is a summary of: On the complexity of solid-state diffusion in highly concentrated alloys and the sluggish diffusion core-effect, Calphad, March 2020, Elsevier,
DOI: 10.1016/j.calphad.2019.101713.
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