The Microstructural and Phase Evolution of the 3D Printed Ti-6Al-4V Alloy during Mechanical Loading = Изменение микроструктуры и фазового состава 3D-напечатанного сплава TI-6AL-4V при механическом нагружении / A. V. Panin, M. S. Kazachenok, L. A. Kazantseva [et al.]
Уровень набора: Physics of Metals and MetallographyЯзык: английский.Страна: .Резюме или реферат: This paper presents the results of an in situ study on the evolution of the microstructure and phase composition of 3D-printed Ti-6Al-4V samples under tension in the transmission electron microscope column. The microstructure of Ti-6Al-4V specimens manufactured by wire-feed electron beam additive technology is shown to consist of columnar primary β-grains inside of which are α/α'-Ti laths separated by layers of the residual β-phase and gathered into packets. A characteristic feature of 3D-printed Ti-6Al-4V samples is the concentration nonuniformity of the alloying elements due to the partial decomposition of the martensitic α'-phase. The reorientation of the α/α'-Ti lattice near interfaces takes place during uniaxial tension. Deformation-induced α'→α" transformations can develop in the reoriented regions of the α/α'-Ti lattice, in places enriched in vanadium..Примечания о наличии в документе библиографии/указателя: [References: 24 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | additive technologies | titanium Ti-6Al-4V alloy | transmission electron microscopy | deformation-induced phase transformations | tension Ресурсы он-лайн:Щелкните здесь для доступа в онлайнTitle screen
[References: 24 tit.]
This paper presents the results of an in situ study on the evolution of the microstructure and phase composition of 3D-printed Ti-6Al-4V samples under tension in the transmission electron microscope column. The microstructure of Ti-6Al-4V specimens manufactured by wire-feed electron beam additive technology is shown to consist of columnar primary β-grains inside of which are α/α'-Ti laths separated by layers of the residual β-phase and gathered into packets. A characteristic feature of 3D-printed Ti-6Al-4V samples is the concentration nonuniformity of the alloying elements due to the partial decomposition of the martensitic α'-phase. The reorientation of the α/α'-Ti lattice near interfaces takes place during uniaxial tension. Deformation-induced α'→α" transformations can develop in the reoriented regions of the α/α'-Ti lattice, in places enriched in vanadium.
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