Investigation of the 600 °C isothermal section of the Fe–Al–Ce ternary system

Huiyun Zheng; Zhi Li; Li Ji; Fucheng Yin

doi:10.3139/146.111449

Article

Investigation of the 600 °C isothermal section of the Fe–Al–Ce ternary system

Huiyun Zheng , Zhi Li , Li Ji and Fucheng Yin

Published/Copyright: January 12, 2017

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From the journal International Journal of Materials Research Volume 108 Issue 1

Abstract

The isothermal section of the Fe–Al–Ce system at 600 °C was determined by means of scanning electron microscopy coupled with energy dispersive spectroscopy and X-ray powder diffraction. Twenty three-phase regions were confirmed experimentally, and two three-phase regions could be deduced in this section. Five ternary compounds, i. e., τ₁, τ₂, τ₃, τ₅, and τ₆, exist at 600 °C. The Fe₂Ce phase contains 6.6 at.% Al in the Fe–Al–Ce system. The Fe solubility in α-Al, αAl₁₁Ce₃, αAl₃Ce, Al₂Ce, AlCe, and AlCe₃ is approximately 1.7 at.%, 1.1 at.%, 1.2 at.%, 1.3 at.%, 5.8 at.%, and 0.1 at.%, respectively, and the solubility of Ce in α-Al, FeAl₃, Fe₂Al_5, FeAl₂, and FeAl is approximately 0.1 at.%, 1.2 at.%, 1.9 at.%, 0.9 at.%, and 3.7 at.%, respectively.

Keywords: Fe–Al–Ce ternary system; Phase diagram; Scanning electron microscopy; X-ray diffraction

*Correspondence address, Professor Zhi Li, School of Materials Science and Engineering, Xiangtan University, Hunan 411105, PR China, Tel.: +86073158292213, E-mail: lizhiclsj@xtu.edu.cn

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Received: 2016-08-05

Accepted: 2016-10-11

Published Online: 2017-01-12

Published in Print: 2017-01-09

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https://doi.org/10.3139/146.111449

Keywords for this article

Fe–Al–Ce ternary system; Phase diagram; Scanning electron microscopy; X-ray diffraction