Monte Carlo Simulation of Diffusion Processes in Three-Component Alloys


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

The methods of molecular dynamics applied to a representative volume of a substance make it possible to calculate atomic trajectories within the time intervals on the order of 1 ns, which ensures an investigation of such slow processes as diffusion. This problem can be solved using the Monte Carlo method successfully applied to investigation of such diffusion-controlled processes as order – disorder transitions in the alloys or diffusion welding of heterogeneous metals through a backing plate. The majority of studies have been made for binary alloys, while the alloys in practical use contain a larger number of components. A theoretical model is presented, which allows investigating diffusion processes in three-component alloys via the vacancy mechanism in a solid-sphere approximation. A relation is derived for calculating the potential energy of an alloy, which is specified for the case of a completely disordered alloy. The difference between these energies is expressed via the ordering energies and order parameter. The proposed model is applicable to crystal lattices of any dimensionality. An example of its use for a three-component alloy of the A2BC stoichiometry is given, whose atoms occupy the sites of a two-dimensional square lattice is given.

Негізгі сөздер

Авторлар туралы

A. Khalikov

Ufa State Aviation Technical University

Хат алмасуға жауапты Автор.
Email: khalikov.albert.r@gmail.com
Ресей, Ufa

E. Sharapov

OOO Bashneft Polyus

Email: khalikov.albert.r@gmail.com
Ресей, Ufa

E. Korznikova

Ufa State Aviation Technical University; Institute for Metals Superplasticity Problems of the Russian Academy of Sciences

Email: khalikov.albert.r@gmail.com
Ресей, Ufa; Ufa

A. Potekaev

V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University; National Research Tomsk State University

Email: khalikov.albert.r@gmail.com
Ресей, Tomsk; Tomsk

M. Starostenkov

Polzunov Altai State Technical University

Email: khalikov.albert.r@gmail.com
Ресей, Barnaul

E. Galieva

Institute for Metals Superplasticity Problems of the Russian Academy of Sciences

Email: khalikov.albert.r@gmail.com
Ресей, Ufa

S. Dmitriev

Institute for Metals Superplasticity Problems of the Russian Academy of Sciences; National Research Tomsk State University

Email: khalikov.albert.r@gmail.com
Ресей, Ufa; Tomsk

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Springer Science+Business Media, LLC, part of Springer Nature, 2019