| Abstract Scope |
Local equilibrium is a broadly used concept. As shown by the Gibbs-Duhem equation among all potentials, for systems with three or more potentials, such as a ternary system with three chemical potentials under isothermal and isobaric conditions, the local equilibrium is not uniquely defined, but depends on the kinetics of the changes of the conjugate molar quantities of those potentials. As discussed recently (1), Hillert extended the Gibbs thermodynamics by including the entropy productions due to independent internal processes. In the present talk, local equilibrium (LE), its limit as non-partitioning LE (NPLE) (2), and restricted LE in terms of paraequilibrium (3) will be discussed in the framework of Hillert thermodynamics along with their implications on kinetics (4,5).
(1) J. Phase Equilibria Diffus., ArXiv 2402.14231 (2024)
(2) in PTM’94, 39–44 (1994)
(3) MRS Proc. 19, 295 (1982)
(4) Acta Metall. 37, 3157–3163 (1989)
(5) Mater. Res. Lett. 10, 393–439 (2022) |