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Study on Main Diffusion Coefficients and Atomic Mobility of Alloying Elements in the β-Phase of the Ti–Zr–Ta Ternary System.

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Title: Study on Main Diffusion Coefficients and Atomic Mobility of Alloying Elements in the β-Phase of the Ti–Zr–Ta Ternary System.
Authors: Liu, Jingmin1 (AUTHOR), Shen, Danya1,2 (AUTHOR), Zhao, Wenqing1,3 (AUTHOR), Zhang, Hongyu1,2 (AUTHOR) wangkaigek@163.com, Rong, Maohua2,3 (AUTHOR), Wang, Kaige1,3 (AUTHOR), Zhang, Ligang1 (AUTHOR), Liu, Libin1 (AUTHOR)
Source: Materials (1996-1944). Apr2026, Vol. 19 Issue 7, p1289. 16p.
Subjects: Diffusion coefficients, Titanium alloys, Inverse problems, Diffusion kinetics, Annealing of metals, Diffusion measurements, Ternary alloys
Abstract: Diffusion-controlled processes exert an indispensable influence on the thermal processing and microstructural homogenization of β-titanium alloys containing multiple β-stabilizing elements. However, credible multicomponent diffusion kinetic data corresponding to the β-phase within the Ti–Zr–Ta ternary system remain inadequate. In this work, diffusion characteristics within the β single-phase domain of the Ti–Zr–Ta system were investigated using solid-state diffusion couples combined with a numerical inverse method. Twelve diffusion couples in total were synthesized and subjected to annealing treatments at 1373, 1423, and 1473 K, with the corresponding composition–distance distributions quantified by electron probe microanalysis (EPMA). The composition-dependent main interdiffusion coefficients were measured via the numerical inverse method embedded in the HitDIC computational platform, while the atomic mobility parameters corresponding to the β-phase were refined to replicate the experimental concentration distributions and diffusion trajectories across the studied temperature and composition intervals. The results reveal pronounced temperature and composition dependence of the main interdiffusion coefficients, and the diffusion rate of Zr is faster than that of Ta in the β phase. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Study on Main Diffusion Coefficients and Atomic Mobility of Alloying Elements in the β-Phase of the Ti–Zr–Ta Ternary System.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Jingmin%22">Liu, Jingmin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shen%2C+Danya%22">Shen, Danya</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Wenqing%22">Zhao, Wenqing</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Hongyu%22">Zhang, Hongyu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> wangkaigek@163.com</i><br /><searchLink fieldCode="AR" term="%22Rong%2C+Maohua%22">Rong, Maohua</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Kaige%22">Wang, Kaige</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ligang%22">Zhang, Ligang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Libin%22">Liu, Libin</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Apr2026, Vol. 19 Issue 7, p1289. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Diffusion+coefficients%22">Diffusion coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+alloys%22">Titanium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Inverse+problems%22">Inverse problems</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion+kinetics%22">Diffusion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Annealing+of+metals%22">Annealing of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion+measurements%22">Diffusion measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Ternary+alloys%22">Ternary alloys</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Diffusion-controlled processes exert an indispensable influence on the thermal processing and microstructural homogenization of β-titanium alloys containing multiple β-stabilizing elements. However, credible multicomponent diffusion kinetic data corresponding to the β-phase within the Ti–Zr–Ta ternary system remain inadequate. In this work, diffusion characteristics within the β single-phase domain of the Ti–Zr–Ta system were investigated using solid-state diffusion couples combined with a numerical inverse method. Twelve diffusion couples in total were synthesized and subjected to annealing treatments at 1373, 1423, and 1473 K, with the corresponding composition–distance distributions quantified by electron probe microanalysis (EPMA). The composition-dependent main interdiffusion coefficients were measured via the numerical inverse method embedded in the HitDIC computational platform, while the atomic mobility parameters corresponding to the β-phase were refined to replicate the experimental concentration distributions and diffusion trajectories across the studied temperature and composition intervals. The results reveal pronounced temperature and composition dependence of the main interdiffusion coefficients, and the diffusion rate of Zr is faster than that of Ta in the β phase. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/ma19071289
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        Text: English
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        PageCount: 16
        StartPage: 1289
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      – SubjectFull: Diffusion coefficients
        Type: general
      – SubjectFull: Titanium alloys
        Type: general
      – SubjectFull: Inverse problems
        Type: general
      – SubjectFull: Diffusion kinetics
        Type: general
      – SubjectFull: Annealing of metals
        Type: general
      – SubjectFull: Diffusion measurements
        Type: general
      – SubjectFull: Ternary alloys
        Type: general
    Titles:
      – TitleFull: Study on Main Diffusion Coefficients and Atomic Mobility of Alloying Elements in the β-Phase of the Ti–Zr–Ta Ternary System.
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            NameFull: Liu, Jingmin
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            NameFull: Shen, Danya
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            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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              Value: 19
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              Value: 7
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