Triple junctions network as the key pattern for characterisation of grain structure evolution in metals

Siying Zhu; Elijah Borodin; Andrey Jivkov

doi:10.1016/j.matdes.2020.109352

Triple junctions network as the key pattern for characterisation of grain structure evolution in metals

Siying Zhu, Elijah Borodin, Andrey Jivkov

Research output: Contribution to journal › Article › peer-review

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Abstract

Describing dynamic recrystallisation processes is challenging with the existing limited set of material characterisation tools. This creates potential barriers to further developments in grain boundary engineering. We consider the network of triple junctions in copper alloys as a critical structure governing continuous dynamic recrystallisation and propose a related structural entropy parameter. With the limited available characterisation data we demonstrate that this parameter describes well the evolution of the microstructure during severe plastic deformation. Importantly, with the help of this parameter micro-localisation features in copper alloys observed in some recent experiments can be elucidated.

Original language	English
Article number	109352
Number of pages	6
Journal	Materials & Design
Volume	198
DOIs	https://doi.org/10.1016/j.matdes.2020.109352
Publication status	Published - 1 Jan 2021

Keywords

continuous dynamic recrystallisation
high angle grain boundaries
triple junctions
structural entropy
copper alloys
severe plastic deformation

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10.1016/j.matdes.2020.109352Licence: CC BY

M&D2021Final published version, 1.45 MBLicence: CC BY

1 Finished

Geometric Mechanics of Solids: new analysis of modern engineering materials - GEMS
Jivkov, A. & Margetts, L.
1/11/16 → 31/10/21
Project: Research

10 Article

Topological characteristics of grain boundary networks during severe plastic deformations of copper alloys
Zhu, S., Borodin, E. & Jivkov, A., 15 Oct 2023, In: Acta Materialia. 259, 14 p., 119290.
Research output: Contribution to journal › Article › peer-review

Open Access
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A geometric formulation of linear elasticity based on Discrete Exterior Calculus
Boom, P., Kosmas, O., Margetts, L. & Jivkov, A., 1 Feb 2022, In: International Journal of Solids and Structures. 236-237, 12 p., 111345.
Research output: Contribution to journal › Article › peer-review

Open Access
File
61 Downloads (Pure)
Optimisation of rGO-enriched nanoceramics by combinatorial analysis
Borodin, E., Jivkov, A., Sheinerman, AG. & Gutkin, M. Y., 15 Dec 2021, In: Materials & Design. 212, 11 p., 110191.
Research output: Contribution to journal › Article › peer-review

Open Access
File
101 Downloads (Pure)

Cite this

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title = "Triple junctions network as the key pattern for characterisation of grain structure evolution in metals",

abstract = "Describing dynamic recrystallisation processes is challenging with the existing limited set of material characterisation tools. This creates potential barriers to further developments in grain boundary engineering. We consider the network of triple junctions in copper alloys as a critical structure governing continuous dynamic recrystallisation and propose a related structural entropy parameter. With the limited available characterisation data we demonstrate that this parameter describes well the evolution of the microstructure during severe plastic deformation. Importantly, with the help of this parameter micro-localisation features in copper alloys observed in some recent experiments can be elucidated.",

keywords = "continuous dynamic recrystallisation, high angle grain boundaries, triple junctions, structural entropy, copper alloys, severe plastic deformation",

author = "Siying Zhu and Elijah Borodin and Andrey Jivkov",

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AU - Zhu, Siying

AU - Borodin, Elijah

AU - Jivkov, Andrey

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N2 - Describing dynamic recrystallisation processes is challenging with the existing limited set of material characterisation tools. This creates potential barriers to further developments in grain boundary engineering. We consider the network of triple junctions in copper alloys as a critical structure governing continuous dynamic recrystallisation and propose a related structural entropy parameter. With the limited available characterisation data we demonstrate that this parameter describes well the evolution of the microstructure during severe plastic deformation. Importantly, with the help of this parameter micro-localisation features in copper alloys observed in some recent experiments can be elucidated.

AB - Describing dynamic recrystallisation processes is challenging with the existing limited set of material characterisation tools. This creates potential barriers to further developments in grain boundary engineering. We consider the network of triple junctions in copper alloys as a critical structure governing continuous dynamic recrystallisation and propose a related structural entropy parameter. With the limited available characterisation data we demonstrate that this parameter describes well the evolution of the microstructure during severe plastic deformation. Importantly, with the help of this parameter micro-localisation features in copper alloys observed in some recent experiments can be elucidated.

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KW - high angle grain boundaries

KW - triple junctions

KW - structural entropy

KW - copper alloys

KW - severe plastic deformation

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Triple junctions network as the key pattern for characterisation of grain structure evolution in metals

Abstract

Keywords

Access to Document

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Projects

Geometric Mechanics of Solids: new analysis of modern engineering materials - GEMS

Research output

Topological characteristics of grain boundary networks during severe plastic deformations of copper alloys

A geometric formulation of linear elasticity based on Discrete Exterior Calculus

Optimisation of rGO-enriched nanoceramics by combinatorial analysis

Cite this