Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling

To investigate the ordering and decomposition processes in Ti-Al-X [X = Si, Zr] alloys, the Monte Carlo simulations with first-principles parametrization of interatomic interactions were employed. It was shown that the processes of ordering and the precipitation in the Ti-Al system are closely relat...

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Main Authors: Mikhail Petrik, Ilya Razumov, Yuri Gornostyrev, Inna Naschetnikova, Artemyi Popov
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/16/5722
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author Mikhail Petrik
Ilya Razumov
Yuri Gornostyrev
Inna Naschetnikova
Artemyi Popov
author_facet Mikhail Petrik
Ilya Razumov
Yuri Gornostyrev
Inna Naschetnikova
Artemyi Popov
author_sort Mikhail Petrik
collection DOAJ
description To investigate the ordering and decomposition processes in Ti-Al-X [X = Si, Zr] alloys, the Monte Carlo simulations with first-principles parametrization of interatomic interactions were employed. It was shown that the processes of ordering and the precipitation in the Ti-Al system are closely related, and the stage of homogeneous ordering precedes the formation of ordered Ti<sub>3</sub>Al particles. It was found that the duration of homogeneous ordering is very sensitive to the annealing temperature and composition of alloy, and that precipitation becomes preferable as the temperature rises. In particular, uniform ordering of alloy Ti-12 at % Al was found during long-term holding at temperature below 850 K, while annealing at 1000 K resulted in formation of ordered Ti<sub>3</sub>Al particles. The obtained results agree well with the experimental data and allow explaining the features of the microstructure formed during annealing of the Ti-Al-X alloys.
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spelling doaj.art-1220cdfd16bf495eb0efbdf79120e34e2023-12-03T14:02:20ZengMDPI AGMaterials1996-19442022-08-011516572210.3390/ma15165722Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo ModelingMikhail Petrik0Ilya Razumov1Yuri Gornostyrev2Inna Naschetnikova3Artemyi Popov4Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620108, RussiaMikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620108, RussiaMikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620108, RussiaMikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg 620108, RussiaHeat Treatment and Physics of Metals Department, Ural Federal University Named after The First President of Russia B.N. Yeltsin, Ekaterinburg 620002, RussiaTo investigate the ordering and decomposition processes in Ti-Al-X [X = Si, Zr] alloys, the Monte Carlo simulations with first-principles parametrization of interatomic interactions were employed. It was shown that the processes of ordering and the precipitation in the Ti-Al system are closely related, and the stage of homogeneous ordering precedes the formation of ordered Ti<sub>3</sub>Al particles. It was found that the duration of homogeneous ordering is very sensitive to the annealing temperature and composition of alloy, and that precipitation becomes preferable as the temperature rises. In particular, uniform ordering of alloy Ti-12 at % Al was found during long-term holding at temperature below 850 K, while annealing at 1000 K resulted in formation of ordered Ti<sub>3</sub>Al particles. The obtained results agree well with the experimental data and allow explaining the features of the microstructure formed during annealing of the Ti-Al-X alloys.https://www.mdpi.com/1996-1944/15/16/5722titanium alloysordering and decomposition kineticsab initio calculationsMonte Carlo modeling
spellingShingle Mikhail Petrik
Ilya Razumov
Yuri Gornostyrev
Inna Naschetnikova
Artemyi Popov
Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
Materials
titanium alloys
ordering and decomposition kinetics
ab initio calculations
Monte Carlo modeling
title Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
title_full Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
title_fullStr Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
title_full_unstemmed Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
title_short Kinetics of Ordering and Decomposition in Ti-Al-X (X = Si, Zr) Alloys: Monte Carlo Modeling
title_sort kinetics of ordering and decomposition in ti al x x si zr alloys monte carlo modeling
topic titanium alloys
ordering and decomposition kinetics
ab initio calculations
Monte Carlo modeling
url https://www.mdpi.com/1996-1944/15/16/5722
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