Journal
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
Volume 108, Issue 1, Pages 36-44Publisher
CARL HANSER VERLAG
DOI: 10.3139/146.111449
Keywords
Fe-Al-Ce ternary system; Phase diagram; Scanning electron microscopy; X-ray diffraction
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Funding
- National Science Foundation of the China [51471140]
- Ph.D. Programs Foundation of Ministry of Education of China [20134301110006]
- Scientific Research Fund of Hunan Provincial Educational Department [14A143]
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The isothermal section of the Fe-Al-Ce system at 600 degrees 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., tau(1), tau(2), tau(3), tau(5), and tau(6), exist at 600 degrees C. The Fe2Ce phase contains 6.6 at.% Al in the Fe-Al-Ce system. The Fe solubility in aAl, alpha-Al, alpha Al11Ce3, alpha Al3Ce, 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 a-Al, FeAl3, Fe2Al5, FeAl2, and FeAl is approximately 0.1 at.%, 1.2 at.%, 1.9 at.%, 0.9 at.%, and 3.7 at.%, respectively.
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