B-Fe (boron-iron)

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Supplemental Literature Review: Section III

B-Fe (Boron-Iron) H. Okamoto

The Fe-B phase diagram in [Massalski2] was based on thermodynamic modeling done by [1993Lia] (dashed lines in Fig. 1). An almost identical phase diagram was obtained by [1994Hal], as reported in [1995Oka]. [2002Van] obtained

two slightly different Fe-B phase diagrams using two thermodynamic models. Solid lines in Fig. 1 show the result based on the “interstitial model.” Because experimental phase boundary data are scattered, no preference be-

Fig. 1 Fe-B phase diagram

Fig. 2 (␥Fe) and (␣Fe) solvus curves

Journal of Phase Equilibria and Diffusion Vol. 25 No. 3 2004

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Section III: Supplemental Literature Review tween [1993Lia] and [2002Van] can be made at this moment. Figure 2 shows (␥Fe) and (␣Fe) solvus curves calculated by [1994Hal] and [2002Van]. The results are almost identical except the difference related to the L → (␥Fe) + Fe2B eutectic temperature. References 1993Lia: P.K. Liao and K.E. Spear: “B-Fe (Boron-Iron)” in Phase

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Diagrams of Binary Iron Alloys, H. Okamoto, ed., ASM International, Materials Park, OH, 1993, pp. 41-47. 1994Hal: B. Hallemans, P. Wollants, and J.R. Roos: “Thermodynamic Reassessment and Calculation of the Fe-B Phase Diagram,” Z. Metalkde., 1994, 85(10), pp. 676-82. 1995Oka: H. Okamoto: “Comment on B-Fe (Boron-Iron),” J. Phase Equilibria, 1995, 16(4), pp. 364-65. 2002Van: T. Van Rompaey, K.C. Hari Kumar, and P. Wollants: “Thermodynamic Optimization of the B-Fe System,” J. Alloys Compd., 2002, 334, pp. 173-81.

Journal of Phase Equilibria and Diffusion Vol. 25 No. 3 2004

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