• Open Access

Effects of composition and magnetism on interfacial energy in Cu-Co alloys

Changle Li, Song Lu, Wei Li, Qing Chen, and Levente Vitos
Phys. Rev. Materials 6, 053403 – Published 24 May 2022

Abstract

The composition and magnetic dependent interfacial energy in Cu-Co immiscible alloys is investigated within a coherent interface model using ab initio calculations. We translate the composition dependence of the interfacial energy to the temperature dependence considering the variations of the equilibrium compositions of precipitate and matrix with respect to temperature. The obtained results are in reasonable agreement with those obtained by experiments and thermodynamic calculations. Reviewing the experimental methods for determining the interfacial energy based on kinetic models for precipitate nucleation and coarsening, as well the thermodynamic models based on broken-bond models, we point out that the temperature effect on the interfacial energy in the above models is primarily due to the composition change of the interface. The present work emphasizes the effort to understand the meaning of the speciously same quantity in different methods.

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  • Received 8 December 2021
  • Accepted 18 May 2022

DOI:https://doi.org/10.1103/PhysRevMaterials.6.053403

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by Bibsam.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Changle Li1, Song Lu1,*, Wei Li2, Qing Chen3, and Levente Vitos1,2,4

  • 1Applied Materials Physics, Department of Materials Science and Engineering, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
  • 2Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
  • 3Thermo-Calc Software AB, Råsundavägen 18, SE-16967 Solna, Sweden
  • 4Research Institute for Solid State Physics and Optics, Wigner Research Center for Physics, P.O. Box 49, H-1525 Budapest, Hungary

  • *songlu@kth.se

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Issue

Vol. 6, Iss. 5 — May 2022

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