Evolution of the entropy of dislocation structures with strain in solid solutions of Cu-0.5at.% Al

Abstract

The study on the evolution of the dislocation structure (DS) parameters with strain of solid solutions of Cu-0.5 at.% Al at different test temperatures has been carried out. It has been shown that in substructures with a disordered type of DS (disorder), the disordered mixtures with non-disoriented cells, as well as mixtures of non-disoriented and disoriented cellular structures, the entropy density increases with strain. It has been shown that formation of the cellular substructure corresponds to a diffuse kinetic phase transition of the 1-st kind in the DS. A jump-like decrease in entropy accompanying this phase transition is associated with the annihilation of dislocations in cellular walls and formation of excess dislocation density.

Original language	English
Title of host publication	Multifunctional Materials
Subtitle of host publication	Development and Application
Publisher	Trans Tech Publications Ltd
Pages	232-236
Number of pages	5
ISBN (Print)	9783038357292
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.683.232
Publication status	Published - 1 Jan 2016
Event	12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015 - Tomsk, Russian Federation Duration: 21 Apr 2015 → 24 Apr 2015

Publication series

Name	Key Engineering Materials
Volume	683
ISSN (Print)	1013-9826

Conference

Conference	12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
Country	Russian Federation
City	Tomsk
Period	21.4.15 → 24.4.15

Keywords

Dislocation structure
Dislocation transformations
Shannon entropy
Solid solutions of Cu-Al alloys
Statistical boltzmann entropy
Strain

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Abzaev, Y., Trishkina, L., Porobova, S., Klopotov, A., Vlasov, V. A., & Klopotov, V. (2016). Evolution of the entropy of dislocation structures with strain in solid solutions of Cu-0.5at.% Al. In Multifunctional Materials: Development and Application (pp. 232-236). (Key Engineering Materials; Vol. 683). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.683.232

Evolution of the entropy of dislocation structures with strain in solid solutions of Cu-0.5at.% Al. / Abzaev, Yuriy; Trishkina, Lyudmila; Porobova, Svetlana; Klopotov, Anatoliy; Vlasov, Victor Alexeevich ; Klopotov, Vladimir.

Multifunctional Materials: Development and Application. Trans Tech Publications Ltd, 2016. p. 232-236 (Key Engineering Materials; Vol. 683).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abzaev, Y, Trishkina, L, Porobova, S, Klopotov, A, Vlasov, VA & Klopotov, V 2016, Evolution of the entropy of dislocation structures with strain in solid solutions of Cu-0.5at.% Al. in Multifunctional Materials: Development and Application. Key Engineering Materials, vol. 683, Trans Tech Publications Ltd, pp. 232-236, 12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015, Tomsk, Russian Federation, 21.4.15. https://doi.org/10.4028/www.scientific.net/KEM.683.232

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abstract = "The study on the evolution of the dislocation structure (DS) parameters with strain of solid solutions of Cu-0.5 at.% Al at different test temperatures has been carried out. It has been shown that in substructures with a disordered type of DS (disorder), the disordered mixtures with non-disoriented cells, as well as mixtures of non-disoriented and disoriented cellular structures, the entropy density increases with strain. It has been shown that formation of the cellular substructure corresponds to a diffuse kinetic phase transition of the 1-st kind in the DS. A jump-like decrease in entropy accompanying this phase transition is associated with the annihilation of dislocations in cellular walls and formation of excess dislocation density.",

keywords = "Dislocation structure, Dislocation transformations, Shannon entropy, Solid solutions of Cu-Al alloys, Statistical boltzmann entropy, Strain",

author = "Yuriy Abzaev and Lyudmila Trishkina and Svetlana Porobova and Anatoliy Klopotov and Vlasov, {Victor Alexeevich} and Vladimir Klopotov",

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AU - Abzaev, Yuriy

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AU - Vlasov, Victor Alexeevich

AU - Klopotov, Vladimir

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AB - The study on the evolution of the dislocation structure (DS) parameters with strain of solid solutions of Cu-0.5 at.% Al at different test temperatures has been carried out. It has been shown that in substructures with a disordered type of DS (disorder), the disordered mixtures with non-disoriented cells, as well as mixtures of non-disoriented and disoriented cellular structures, the entropy density increases with strain. It has been shown that formation of the cellular substructure corresponds to a diffuse kinetic phase transition of the 1-st kind in the DS. A jump-like decrease in entropy accompanying this phase transition is associated with the annihilation of dislocations in cellular walls and formation of excess dislocation density.

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KW - Solid solutions of Cu-Al alloys

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