Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure

Yury Petrovich Sharkeev, Anna Yu Eroshenko, Pavel V. Uvarkin, Alexey I. Tolmachev, Nesibeli K. Akhmetova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper describes the experimental results in microstructure thermal stability and mechanical properties of ultrafine-grained zirconium alloy with 1 mass % Nb (Zr-1 mass %Nb) under prolonged thermal exposure. Ultrafine-grained zirconium alloy is produced by severe plastic deformation (SPD) method. It was proved that SPD method including multiple abc-pressing and multi-pass rolling, as well as further pre-recrystallizing annealing enhances the formation of ultrafine-grained structures with mean element size of 0.2 μm. Thermostability time interval of ultrafine-grained structure and the mechanical properties (in case of microhardness) under prolonged thermal exposure (up to 360 hours) for zirconium alloy was experimentally determined. It was proved that ultrafine-grained structure is stable at 400°? within 10 hours whilst keeping the microhardness level attained after SPD. In cases of continuous annealing time from 24 to 360 hours recrystallization processes develop intensively, followed by the decrease in microhardness and intensive growth of structure elements within the alloy.

Original languageEnglish
Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
PublisherAmerican Institute of Physics Inc.
Volume1783
ISBN (Electronic)9780735414457
DOIs
Publication statusPublished - 10 Nov 2016
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
Duration: 19 Sep 201623 Sep 2016

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
CountryRussian Federation
CityTomsk
Period19.9.1623.9.16

Fingerprint

zirconium alloys
microhardness
plastic deformation
mechanical properties
microstructure
thermal stability
annealing
pressing
intervals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sharkeev, Y. P., Eroshenko, A. Y., Uvarkin, P. V., Tolmachev, A. I., & Akhmetova, N. K. (2016). Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Vol. 1783). [020205] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966499

Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure. / Sharkeev, Yury Petrovich; Eroshenko, Anna Yu; Uvarkin, Pavel V.; Tolmachev, Alexey I.; Akhmetova, Nesibeli K.

Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783 American Institute of Physics Inc., 2016. 020205.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sharkeev, YP, Eroshenko, AY, Uvarkin, PV, Tolmachev, AI & Akhmetova, NK 2016, Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure. in Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. vol. 1783, 020205, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016, Tomsk, Russian Federation, 19.9.16. https://doi.org/10.1063/1.4966499
Sharkeev YP, Eroshenko AY, Uvarkin PV, Tolmachev AI, Akhmetova NK. Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783. American Institute of Physics Inc. 2016. 020205 https://doi.org/10.1063/1.4966499
Sharkeev, Yury Petrovich ; Eroshenko, Anna Yu ; Uvarkin, Pavel V. ; Tolmachev, Alexey I. ; Akhmetova, Nesibeli K. / Microstructure stability and mechanical properties of ultrafine-grained zirconium alloy under prolonged thermal exposure. Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783 American Institute of Physics Inc., 2016.
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AU - Eroshenko, Anna Yu

AU - Uvarkin, Pavel V.

AU - Tolmachev, Alexey I.

AU - Akhmetova, Nesibeli K.

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N2 - The paper describes the experimental results in microstructure thermal stability and mechanical properties of ultrafine-grained zirconium alloy with 1 mass % Nb (Zr-1 mass %Nb) under prolonged thermal exposure. Ultrafine-grained zirconium alloy is produced by severe plastic deformation (SPD) method. It was proved that SPD method including multiple abc-pressing and multi-pass rolling, as well as further pre-recrystallizing annealing enhances the formation of ultrafine-grained structures with mean element size of 0.2 μm. Thermostability time interval of ultrafine-grained structure and the mechanical properties (in case of microhardness) under prolonged thermal exposure (up to 360 hours) for zirconium alloy was experimentally determined. It was proved that ultrafine-grained structure is stable at 400°? within 10 hours whilst keeping the microhardness level attained after SPD. In cases of continuous annealing time from 24 to 360 hours recrystallization processes develop intensively, followed by the decrease in microhardness and intensive growth of structure elements within the alloy.

AB - The paper describes the experimental results in microstructure thermal stability and mechanical properties of ultrafine-grained zirconium alloy with 1 mass % Nb (Zr-1 mass %Nb) under prolonged thermal exposure. Ultrafine-grained zirconium alloy is produced by severe plastic deformation (SPD) method. It was proved that SPD method including multiple abc-pressing and multi-pass rolling, as well as further pre-recrystallizing annealing enhances the formation of ultrafine-grained structures with mean element size of 0.2 μm. Thermostability time interval of ultrafine-grained structure and the mechanical properties (in case of microhardness) under prolonged thermal exposure (up to 360 hours) for zirconium alloy was experimentally determined. It was proved that ultrafine-grained structure is stable at 400°? within 10 hours whilst keeping the microhardness level attained after SPD. In cases of continuous annealing time from 24 to 360 hours recrystallization processes develop intensively, followed by the decrease in microhardness and intensive growth of structure elements within the alloy.

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