Structure and phase composition of ultrafine-grained TiNb alloy after high-temperature annealings

Anna Yu Eroshenko, Ivan A. Glukhov, Aikol Mairambekova, Alexey I. Tolmachev, Yurii P. Sharkeev

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

1 Citation (Scopus)

Abstract

The paper presents the experimental data observed in the microstructure and phase composition of ultrafine-grained Ti-40 mass % Nb (Ti40Nb) alloy after high-temperature annealings. The ultrafine-grained Ti40Nb alloy is produced by severe plastic deformation (SPD). This method includes multiple abc-pressing and multi-pass rolling followed by further pre-recrystallizing annealing which, in its turn, enhances the formation of ultrafine-grained structures with mean size of 0.28 μm involving stable β- and α-phase and metastable nanosized ω-phase in the alloy. It is shown that annealing at 500°C preserves the ultrafine-grained structure and phase composition. In cases of annealing at 800°C the ultrafine-grained state transforms into the coarse-grained state. The stable β-phase and the nanosized metastable ω-phase have been identified in the coarse-grained structure.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017
PublisherAmerican Institute of Physics Inc.
Volume1909
ISBN (Electronic)9780735416017
DOIs
Publication statusPublished - 1 Dec 2017
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 - Tomsk, Russian Federation
Duration: 9 Oct 201713 Oct 2017

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017
CountryRussian Federation
CityTomsk
Period9.10.1713.10.17

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Eroshenko, A. Y., Glukhov, I. A., Mairambekova, A., Tolmachev, A. I., & Sharkeev, Y. P. (2017). Structure and phase composition of ultrafine-grained TiNb alloy after high-temperature annealings. In Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 (Vol. 1909). [020046] American Institute of Physics Inc.. https://doi.org/10.1063/1.5013727