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Physics of Metals and Metallography
Published in:

01-10-2022 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

The Formation of Segregations and Nanofaceting of Asymmetric Special Grain Boundaries in Al

Authors: L. E. Kar’kina, I. N. Kar’kin, Yu. N. Gornostyrev

Published in: Physics of Metals and Metallography | Issue 10/2022

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Abstract

Formation of segregations of Mg and Ni at the asymmetric special tilt grain boundaries Σ5{010}/{340}❬001❭ and Σ5{110}/{710}❬001❭ in Al has been studied using atomistic simulation methods. It has been shown that the formation of segregations can considerably modify the structure of asymmetric grain boundaries (GBs). Although the segregation of Mg is accompanied by local distortions of a GB, its plane slightly deviates from the initial position. At the same time, the segregation of Ni results in nanofaceting of GBs. The role of features of a chemical bond in reconstructing GBs induced by segregations is discussed.
previous article The Effect of Grain Boundary Mobility on the Formation of Second Phases in Nanostructured Binary Alloys
next article A Study of the Deformation of a Low-Density Aluminum–Lithium Alloy under Impact Compression and Localized Shear

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Metadata
Title
The Formation of Segregations and Nanofaceting of Asymmetric Special Grain Boundaries in Al
Authors
L. E. Kar’kina
I. N. Kar’kin
Yu. N. Gornostyrev
Publication date
01-10-2022
Publisher
Pleiades Publishing
Published in
Physics of Metals and Metallography / Issue 10/2022
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X22601020

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