The Effect of Heat Treatment on the Microstructure and Phase Composition of Wrought and 3D-Printed Ti–5Al–3Mo–1V Titanium Alloy Samples
| Parent link: | Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques.— .— New York: Springer Science+Business Media LLC. Vol. 17, Suppl. 1.— 2023.— P. S166–S173 |
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| Other Authors: | , , , |
| Summary: | Title screen The objective of this research was to compare the microstructure and phase composition of wrought and 3D-printed Ti–5Al–3Mo–1V alloys subjected to quenching and aging. The microstructure of as-obtained wrought alloy and samples prepared by wire-feed electron beam additive manufacturing was studied using optical and scanning electron microscopy, as well as transmission electron microscopy. The phase and chemical compositions of wrought and 3D-printed samples were examined using electron backscatter diffraction and energy-dispersive X-ray microanalysis. X-ray diffraction analysis was used to study the martensitic structure of the Ti–5Al–3Mo–1V alloy samples subjected to quenching at temperatures of 900 and 950°C followed by aging at a temperature of 500°C. It was shown that the volume fraction of residual β-phase in wrought and 3D-printed samples decreased during quenching, and a martensitic orthorhombic α′′-phase appeared. The formation of the α′′-phase in wrought samples after quenching was believed to be associated with the transformation of β → α′′ in bcc solute-lean interlayers. Quenching of the 3D-printed samples, in turn, promoted the formation of α′′-phase in α' laths which undergo α' → β → α" transformation. With the subsequent aging of the wrought and 3D-printed samples, the volume fraction of the α′′-phase decreased Текстовый файл AM_Agreement |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://doi.org/10.1134/S102745102307039X |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672032 |
| Summary: | Title screen The objective of this research was to compare the microstructure and phase composition of wrought and 3D-printed Ti–5Al–3Mo–1V alloys subjected to quenching and aging. The microstructure of as-obtained wrought alloy and samples prepared by wire-feed electron beam additive manufacturing was studied using optical and scanning electron microscopy, as well as transmission electron microscopy. The phase and chemical compositions of wrought and 3D-printed samples were examined using electron backscatter diffraction and energy-dispersive X-ray microanalysis. X-ray diffraction analysis was used to study the martensitic structure of the Ti–5Al–3Mo–1V alloy samples subjected to quenching at temperatures of 900 and 950°C followed by aging at a temperature of 500°C. It was shown that the volume fraction of residual β-phase in wrought and 3D-printed samples decreased during quenching, and a martensitic orthorhombic α′′-phase appeared. The formation of the α′′-phase in wrought samples after quenching was believed to be associated with the transformation of β → α′′ in bcc solute-lean interlayers. Quenching of the 3D-printed samples, in turn, promoted the formation of α′′-phase in α' laths which undergo α' → β → α" transformation. With the subsequent aging of the wrought and 3D-printed samples, the volume fraction of the α′′-phase decreased Текстовый файл AM_Agreement |
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| DOI: | 10.1134/S102745102307039X |