Isothermal section at 1100 °c of the Fe-Ni-Ta system

Chengying Tang, Minmin Tong, Honghui Xu, Yong Du, Joonho Lee, Qingrong Yao, Yuehui He, Huaiying Zhou

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The isothermal section of the Fe-Ni-Ta system at 1100 °C was constructed using 6 diffusion couples and 10 alloys, the compositions of which were selected on the basis of the experimental results of the (Fe-Ni alloy)/Ta diffusion couples. The samples were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. Experimental results showed no existence of ternary compounds at 1100 °C. The following five three-phase equilibria were observed: (1) (Ta) + Ta2Ni + Ta(Fe, Ni), (2) Fe2Ta + Ta (Fe, Ni) + TaNi2, (3) Fe2Ta + TaNi2 + TaNi3, (4) Fe2Ta + TaNi3 + (Fe, Ni), (5) TaNi3 + TaNi8 + (Fe, Ni). The compounds FeTa and NiTa formed continuous solid solution. The solubility of Fe in TaNi2 and TaNi3 was determined to be 18 and 7.8 at.%, respectively, while the solubility of Ni in Fe2Ta was estimated to be 40 at.%.

Original languageEnglish
Pages (from-to)181-185
Number of pages5
JournalJournal of Alloys and Compounds
Volume504
Issue number1
DOIs
Publication statusPublished - 2010 Aug 31

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Solubility
Electron probe microanalysis
Phase equilibria
Optical microscopy
Solid solutions
Scanning electron microscopy
Chemical analysis

Keywords

  • Diffusion
  • Electron microprobe
  • Phase diagrams
  • Scanning electron microscopy
  • Ternary alloy systems

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

Isothermal section at 1100 °c of the Fe-Ni-Ta system. / Tang, Chengying; Tong, Minmin; Xu, Honghui; Du, Yong; Lee, Joonho; Yao, Qingrong; He, Yuehui; Zhou, Huaiying.

In: Journal of Alloys and Compounds, Vol. 504, No. 1, 31.08.2010, p. 181-185.

Research output: Contribution to journalArticle

Tang, C, Tong, M, Xu, H, Du, Y, Lee, J, Yao, Q, He, Y & Zhou, H 2010, 'Isothermal section at 1100 °c of the Fe-Ni-Ta system', Journal of Alloys and Compounds, vol. 504, no. 1, pp. 181-185. https://doi.org/10.1016/j.jallcom.2010.05.084
Tang, Chengying ; Tong, Minmin ; Xu, Honghui ; Du, Yong ; Lee, Joonho ; Yao, Qingrong ; He, Yuehui ; Zhou, Huaiying. / Isothermal section at 1100 °c of the Fe-Ni-Ta system. In: Journal of Alloys and Compounds. 2010 ; Vol. 504, No. 1. pp. 181-185.
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AU - He, Yuehui

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