Investigations of quaternary interdiffusion in a constituent system of high entropy alloys | Zendy

Kaustubh N. Kulkarni | Zendy; Gyanendra Pratap Singh Chauhan | Zendy

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Investigations of quaternary interdiffusion in a constituent system of high entropy alloys

Author(s) -

Kaustubh N. Kulkarni,

Gyanendra Pratap Singh Chauhan

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4931806

Subject(s) - thermodynamics , high entropy alloys , quaternary , diffusion , entropy (arrow of time) , component (thermodynamics) , binary number , chemistry , materials science , metallurgy , physics , microstructure , geology , mathematics , paleontology , arithmetic

Interdiffusion was investigated at 1000°C in a quaternary Fe-Ni-Co-Cr system, which is an essential constituent of many high-entropy alloys. The relative values of main and cross interdiffusion coefficients determined from concentrations and interdiffusion fluxes developed in a single diffusion couple indicate that significant diffusional interactions exist in this system. Thermodynamic interactions between the binary constituents were analyzed based on the activity coefficient relations and it is shown that the observed diffusional interactions of a component with others are consistent with relative thermodynamic interactions between them

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