Simulation of Precipitates Evolution in Steels

Abstract

The model describing the behavior of precipitates of variable composition at heat treatment is suggested. The specific feature of this model is that it enables to take into account the effect of diffusion inside the particles on the kinetics of the process. The application of this model is demonstrated by the example of vanadium carbonitrides V(C,N) evolution in austenite at heat treatment of vanadium-containing steels. The necessity to take into account the diffusion modification of carbonitride composition is considered. Examples of particles composition evolution at heat treatment are demonstrated.

Numerical Simulation of Precipitates Evolution in Iron-Based Alloys

“…Somewhat later we considered a case of growth and dissolution of variable composition precipitates [19][20]. This problem is appreciably more complicated than that of constant composition precipitates, and to solve it an algorithm was worked out; and its numerical realization was accomplished.…”

Simulation of precipitate ensemble evolution in steels with V and Nb

“…The authors of [11] succeeded in taking into account the formation of new nucleation centers. The authors of [12][13] took into account the diffusion in precipitates. In our recent study, this method was extended to multiphase systems [14].…”

Simulation of Precipitates Evolution in Steels with V and Nb at Annealing

“…In ref. [11] we managed to take into account the formation of new nucleation centers, and in [12,13] diffusion in precipitates was considered as well. In our resent publication [14] it was extended to multiphase systems.…”