Ce-Fe (Cerium-Iron)
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ection III: Supplemental Literature Review
Ce-Fe (Cerium-Iron) H. Okamoto
References
The Ce-Fe phase diagram in [Massalski2] was redrawn from the original form of [1993Zha]. The enlargement on the Ce-rich portion of the diagram in [Massalski2] was deleted in [1993Zha] due to violation of the phase rule. [2006Su] assessed the Ce-Fe system by thermodynamic modeling. The calculated phase boundaries (Fig. 1) are in good agreement with the phase boundary data used by [1993Zha] for determining the phase diagram as given in [Massalski2]. Figure 2 shows the enlargement on the Fe-rich portion.
1993Zha: W. Zhang, G. Liu, and K. Han, Ce-Fe (Cerium-Iron), Phase Diagrams of Binary Iron Alloys, H. Okamoto, Ed., ASM International, Materials Park, OH, 1993, p 89-92 2006Su: X. Su and J.C. Tedenac, Thermodynamic Modeling of the Ternary Ce-Fe-Sb System: Assessment of the Ce-Sb and Ce-Fe Systems, Calphad, 2006, 30, p 455-460
Weight Percent Iron 0
10
20
30
40
50
60
70
1600
1400
80 90 100
(δFe)
1538°C
1399°C 90.6
1394°C
L (γFe)
1200 59
1000
925°C
919°C
46.4
912°C
(δCe)
800 798°C 726°C
726°C 4.2 592°C
600
α/βCe2Fe17
16.4
CeFe2
Temperature, °C
1063°C
400
(γCe)
(αFe)
200
(βCe) 61°C 0 0
Ce
10
20
30
40
50
60
70
80
90
Atomic Percent Iron
Fig. 1 Ce-Fe phase diagram
116
Journal of Phase Equilibria and Diffusion Vol. 29 No. 1 2008
100
Fe
Supplemental Literature Review: Section III
Weight Percent Iron 99.3
99.4
99.5
99.6
99.7
99.8
1600
100
99.9
L
1538°C
1500
(δFe)
99.89
1399°C
1400
1394°C
99.88
Temperature, °C
1300
L + (γFe)
1200 1100
(γFe) 1063°C
1000
99.90
α/βCe2Fe17 + (γFe) 99.98
919°C
900
99.93
912°C
(αFe) 800
α/βCe2Fe17 + (αFe)
700 600 500 99.70
99.75
99.80
99.85
99.90
99.95
Atomic Percent Iron
100
Fe
Fig. 2 Enlarged Fe-rich portion of the Ce-Fe phase diagram
Journal of Phase Equilibria and Diffusion Vol. 29 No. 1 2008
117
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