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Influence of the production technology on the structure and mechanical properties of niobium alloy with silicon and aluminumстатья
- Авторы: Sapegina I.V., Lubnin A.N., Ladyanov V.I.
- Журнал: Physics of Metals and Metallography
- Том: 124
- Номер: 3
- Год издания: 2023
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 303
- Последняя страница: 307
- DOI: 10.1134/S0031918X22602050
- Аннотация: Cast Nb–14 at % Si–9 at % Al alloys fabricatedby self-propagating high-temperature synthesis(SHS) and by SHS followed by electric arc remelting have been investigated. A structure consisting of a solid solution of silicon and aluminum in niobium (NbSS), a Nb3Al intermetallic compound, and a β-Nb5(Si,Al)3 silicide formed in the alloy fabricated by SHS. Electric arc remelting suppressed the formation of the Nb3Al phase and resulted in the formation of a dispersed two-phase NbSS and β-Nb5(Si, Al)3 structure in the alloy. The increased volume fraction of NbSS and the dispersed structure formed after electric arc remelting in the alloy increase its fracture toughness to 14.8 ± 0.8 MPa m1/2 compared to 7.7 ± 0.8 MPa m1/2 for the SHSprepared alloy.
- Добавил в систему: Сапегина Ирина Владимировна