Open AccessNonequilibrium evolution thermodynamic of poly- and two-components alloys affected by severe plastic deformation
Author(s) -
Л. С. Метлов,
M Gordey
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2052/1/012026
Subject(s) - non equilibrium thermodynamics , materials science , thermodynamics , grain boundary , deformation (meteorology) , phase diagram , severe plastic deformation , diffusion , martensite , kinetic energy , dislocation , phase (matter) , plasticity , copper , crystallographic defect , statistical physics , metallurgy , condensed matter physics , grain size , microstructure , classical mechanics , physics , composite material , quantum mechanics
The nonequilibrium evolutionary thermodynamics approach is generalized to the case of alloys prone to structural martensitic and diffusion phase transitions in them. A system of kinetic equations is written out to describe the evolution of the density of structural defects, grain boundaries, dislocations and point defects, as well as for the order parameter in the processing of these alloys by the severe plastic deformation way. The approach is illustrated by the numerical experiments results on a specific example of two-component copper-based alloys. Kinetic curves of the evolution of the grain boundaries, dislocations and atoms dissolved in a copper matrix are obtained, qualitative phase diagrams are constructed.