Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium

Nina Koneva, Elena Nikonenko, Natalya Popova, Ivan Gibert, Eduard Kozlov

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Выдержка

The paper presents the transmission electron microscope (TEM) investigations of the structure of Ni-Al-Cr-based superalloy which is obtained by directional crystallization technique. The structural TEM investigations are carried out in two stages: 1) annealing at 1150°C for 1 h and 2) annealing at 1100°C for 480 h. The qualitative and quantitative analysis is given for the structure, phase composition and morphology of heat-resisting alloy additionally alloyed by rhenium Re both in the original state and after thermal treatment. The heat-resisting alloy comprises ∼70 at % Ni, ∼17 at % Al and ∼5 at % Cr. The total amount of the primary alloying elements of Mo, W, Ta, Ti, Co, La was ∼7 at % and 0.4 at % Re. It is shown that the structure of the superalloy is represented by (γ + γ′)-phase mixture which has a morphologically correct crystallographic orientation and quasi-monocrystalline structure. σ-phase is formed in this superalloy due to rhenium. Since Re distribution in the alloy is not uniform, only a part of (γ + γ′)-phase quasi-cuboids is distorted. It is shown that Re modification distorts the ideal structure of (γ + γ′)-phase quasi-cuboids and results in the formation of β-, χ-and σ-phases.

Язык оригиналаАнглийский
Название основной публикацииAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Подзаголовок основной публикацииProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
ИздательAmerican Institute of Physics Inc.
Том1783
ISBN (электронное издание)9780735414457
DOI
СостояниеОпубликовано - 10 ноя 2016
СобытиеInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Российская Федерация
Продолжительность: 19 сен 201623 сен 2016

Конференция

КонференцияInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
СтранаРоссийская Федерация
ГородTomsk
Период19.9.1623.9.16

Отпечаток

rhenium
heat resistant alloys
heat
electron microscopes
annealing
qualitative analysis
quantitative analysis
alloying
crystallization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Koneva, N., Nikonenko, E., Popova, N., Gibert, I., & Kozlov, E. (2016). Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium. В 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 (Том 1783). [020096] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966389

Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium. / Koneva, Nina; Nikonenko, Elena; Popova, Natalya; Gibert, Ivan; Kozlov, Eduard.

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. Том 1783 American Institute of Physics Inc., 2016. 020096.

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Koneva, N, Nikonenko, E, Popova, N, Gibert, I & Kozlov, E 2016, Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium. в 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. том. 1783, 020096, American Institute of Physics Inc., Tomsk, Российская Федерация, 19.9.16. https://doi.org/10.1063/1.4966389
Koneva N, Nikonenko E, Popova N, Gibert I, Kozlov E. Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium. В 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. Том 1783. American Institute of Physics Inc. 2016. 020096 https://doi.org/10.1063/1.4966389
Koneva, Nina ; Nikonenko, Elena ; Popova, Natalya ; Gibert, Ivan ; Kozlov, Eduard. / Phase composition of heat-resisting alloy modified by ageing and alloyed by rhenium. 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. Том 1783 American Institute of Physics Inc., 2016.
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