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

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 b...

Full description

Saved in:
Bibliographic Details
Published inPhysics of metals and metallography Vol. 123; no. 10; pp. 1011 - 1016
Main Authors Kar’kina, L. E., Kar’kin, I. N., Gornostyrev, Yu. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.10.2022
Springer
Springer Nature B.V
Subjects
Alloys
Aluminum
Asymmetry
Chemical bonds
Chemistry and Materials Science
Diffusion
Grain boundaries
Magnesium
Materials Science
Metallic Materials
Phase Transformations
Segregations
Simulation methods
Structure
grain boundaries
segregations
atomistic simulation
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X22601020