Phase equilibria of Ti–Al–V system at 1300 °C

Heng Zhang, Junpin Lin, Yongfeng Liang, Shuai Xu, Yong Xu, Shun Li Shang, Zi Kui Liu

Research output: Contribution to journalArticle

Abstract

Phase equilibria in the Ti–Al–V system at 1300 °C were studied experimentally by examining 50 samples with compositions up to 75 at % Al. An isothermal section of Ti–Al–V at 1300 °C was constructed by means of X-ray diffraction (XRD), electron backscattered diffraction (EBSD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). The isothermal section is characterized by five single-phase regions (i.e., α phase with hcp_A3 structure, β phase with bcc_A2 structure, γ phase with L10 structure, δ phase with D82 structure, and ε phase with D022 structure) and three three-phase regions (α+γ+ε, α+δ+ε, and α+β+δ). Compared with the tentative results at 1200 °C, the single α phase at 1300 °C is highly extended, while the other single-phase regions remain almost unchanged, resulting in the emergence of new three-phase regions.

Original languageEnglish (US)
Article number106609
JournalIntermetallics
Volume115
DOIs
StatePublished - Dec 2019

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Phase structure
Phase equilibria
Electron probe microanalysis
Electron diffraction
X ray diffraction
Scanning electron microscopy
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Zhang, Heng ; Lin, Junpin ; Liang, Yongfeng ; Xu, Shuai ; Xu, Yong ; Shang, Shun Li ; Liu, Zi Kui. / Phase equilibria of Ti–Al–V system at 1300 °C. In: Intermetallics. 2019 ; Vol. 115.
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abstract = "Phase equilibria in the Ti–Al–V system at 1300 °C were studied experimentally by examining 50 samples with compositions up to 75 at {\%} Al. An isothermal section of Ti–Al–V at 1300 °C was constructed by means of X-ray diffraction (XRD), electron backscattered diffraction (EBSD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). The isothermal section is characterized by five single-phase regions (i.e., α phase with hcp_A3 structure, β phase with bcc_A2 structure, γ phase with L10 structure, δ phase with D82 structure, and ε phase with D022 structure) and three three-phase regions (α+γ+ε, α+δ+ε, and α+β+δ). Compared with the tentative results at 1200 °C, the single α phase at 1300 °C is highly extended, while the other single-phase regions remain almost unchanged, resulting in the emergence of new three-phase regions.",
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Phase equilibria of Ti–Al–V system at 1300 °C. / Zhang, Heng; Lin, Junpin; Liang, Yongfeng; Xu, Shuai; Xu, Yong; Shang, Shun Li; Liu, Zi Kui.

In: Intermetallics, Vol. 115, 106609, 12.2019.

Research output: Contribution to journalArticle

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AU - Zhang, Heng

AU - Lin, Junpin

AU - Liang, Yongfeng

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AU - Shang, Shun Li

AU - Liu, Zi Kui

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