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Третичная альфа-фаза в сплавах титана

Authors: Kutsebina, Еlena Y.; Kalienko, Maksim S.; Volkov, Anatoly V.;

Третичная альфа-фаза в сплавах титана

Abstract

The work investigated the influence of heat treatment modes on the microstructure of titanium alloy VT9. The microstructure of the alloy in the initial state after high-temperature treatment in the (α+β) region and aging is represented by the α-phase of three morphologies (globular primary, lamellar secondary, finely dispersed tertiary) and the β-phase. It has been established that when varying the cooling rate in air after high-temperature treatment, the formation of a fine tertiary α-phase is observed in all cases. It has been shown that the dissolution of the tertiary α-phase occurs above 700 °C, but in this case titanium silicide particles are formed.

В работе исследовано влияние режимов термической обработки на микроструктуру титанового сплава ВТ9. Микроструктура сплава в исходном состоянии после высокотемпературной обработки в (α+β)-области и старения представлена α-фазой трех морфологий (глобулярная первичная, пластинчатая вторичная, мелкодисперсная третичная) и β-фазой. Установлено, что при варьировании скорости охлаждения на воздухе после высокотемпературной обработки во всех случаях наблюдается образование мелкодисперсной третичной α-фазы. Показано, что растворение третичной α-фазы происходит выше 700 °С, но при этом образуются частицы силицидов титана.

Keywords

TERTIARY Α-PHASE, МИКРОСТРУКТУРА, ТРЕТИЧНАЯ Α-ФАЗА, VT9 TITANIUM ALLOY, СКОРОСТЬ ОХЛАЖДЕНИЯ, ТИТАНОВЫЙ СПЛАВ ВТ9, ДИФФЕРЕНЦИАЛЬНАЯ СКАНИРУЮЩАЯ КАЛОРИМЕТРИЯ, MICROSTRUCTURE, COOLING RATE, DIFFERENTIAL SCANNING CALORIMETRY

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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