Kinetics of Early Decomposition Stages in Diluted bcc Fe–Сu–Ni–Al Alloy: MC+MD Simulation
- Authors: Kar’kin I.N.1, Kar’kina LE.1, Gornostyrev Y.N.1,2, Korzhavyi A.P.1,3
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Institute of Quantum Materials Science
- Department of Materials Science and Engineering, KTH Royal Institute of Technology
- Issue: Vol 61, No 4 (2019)
- Pages: 601-608
- Section: Mechanical Properties, Physics of Strength, and Plasticity
- URL: https://journal-vniispk.ru/1063-7834/article/view/205225
- DOI: https://doi.org/10.1134/S1063783419040152
- ID: 205225
Cite item
Abstract
A combined approach including the Monte Carlo and molecular-dynamics simulation, decomposition kinetics and segregation formation in the multicomponent low-alloy Fe–1.5Cu–2Ni–1.5Al (at %) alloy is studied. It is shown that the formation of Cu nanoparticles surface-enriched with Ni and Al (coprecipitation mode) includes several stages: (i) the formation of clusters consisting of several Cu atoms, (ii) their enrichment with Ni and Al atoms, and (iii) redistribution of Ni and Al atoms with the formation of a surface layer providing stabilization of Cu nanoparticles. Observed structural features of segregations and their stability in Fe–Cu–Ni–Al alloys is discussed.
About the authors
I. N. Kar’kin
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: lidiakarkina@gmail.com
Russian Federation, Yekaterinburg, 620990
L E. Kar’kina
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: lidiakarkina@gmail.com
Russian Federation, Yekaterinburg, 620990
Yu. N. Gornostyrev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Institute of Quantum Materials Science
Email: lidiakarkina@gmail.com
Russian Federation, Yekaterinburg, 620990 ; Yekaterinburg, 620007
A. P. Korzhavyi
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Department of Materials Science and Engineering, KTH Royal Institute of Technology
Email: lidiakarkina@gmail.com
Russian Federation, Yekaterinburg, 620990 ; Stockholm, SE-100 44
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