journal article·2020-03

An assessment of Fe-Nb-B melts using the two-state liquid model

E.D. Alvares, W.J. Botta, J. Ågren, A. Costa e Silva

Calphad· Volume 68
Publisher page

Abstract

Abstract Amorphous alloys of the (Fe-Co-Ni)-(Cr-Mo-Nb)-B system are promising materials to supply the demands for higher wear resistance components in the petrochemical industry. Since the development of the CALPHAD method, the development of new metallic alloys has been accompanied by thermodynamic modelling and calculations. The prediction of the formation of amorphous alloys requires special care with the modeling of the liquid and or an amorphous phase. As a initial stage in the more complex system, the basic Fe-Nb-B ternary system was selected. In order to predict the stability and tendencies of transformations of these amorphous alloys, the Fe-Nb-B system was reassessed using Agren's two-state model to describe the liquid phase. The results of the present assessment show very good agreement with the recently reported stable phase diagram. Furthermore, the use of the two-state model for the liquid is more accurate and physically consistent when evaluating transformations from supercooled liquid, as shown it the present work.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Metallic Glasses and Amorphous Alloys · Microstructure and Mechanical Properties of Steels · Metallurgical Processes and Thermodynamics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (50)

Show source-provided references
1. The CALPHAD method and its role in materials and process development10.4322/2176-1523.1059 ↗
2. Saunders · 1998
3. Thermodynamics and the glass forming ability of alloys
4. Iron-based bulk metallic glasses10.1179/1743280412Y.0000000007 ↗
5. Thermodynamic analysis of glass formation in Fe-B system10.1016/S0364-5916(02)00012-3 ↗
6. Application of the CALPHAD method for the prediction of amorphous phase formation10.1016/0022-5088(88)90258-5 ↗
7. The use of thermodynamic models in the prediction of the glass-forming range of binary alloys10.1557/JMR.1987.0456 ↗
8. Workshop on thermodynamic models and data for pure elements and other endmembers of solutions10.1016/0364-5916(96)00003-X ↗
9. Thermodynamic modelling of liquids: CALPHAD approaches and contributions from statistical physics: thermodynamic modelling of liquids10.1002/pssb.201350149 ↗
10. Applications of computational thermodynamics — the extension from phase equilibrium to phase transformations and other properties10.1016/j.calphad.2006.02.006 ↗
11. Group 4 & 5: process modeling and applications- 1997 Ringberg workshop
12. Thermodynamics of supercooled liquids and their glass transition10.1080/00319108808078586 ↗
13. Thermodynamic properties of supercooled Fe-B liquids—a theoretical and experimental study10.1361/105497100770340372 ↗
14. Thermodynamic and kinetic aspects of crystallization of supercooled Ag- Cu liquids10.1016/0022-5088(88)90272-X ↗
15. Modeling of thermodynamic properties for Bcc, Fcc, liquid, and amorphous iron10.1007/s11669-001-0027-9 ↗
16. Thermodynamic analysis of the Fe-Nb-B ternary system10.2355/isijinternational.48.835 ↗
17. R. Bormann, Thermodynamics of undercooled liquids and its application to amorphous phase formation. Mater. Sci. Eng. A. A178.10.1016/0921-5093(94)90518-5 ↗
18. Determination of the thermodynamic functions and calculation of phase-diagrams for metastable phases10.1002/pssa.2211310238 ↗
19. Thermodynamics of stable and metastable phases in the Ni-Zr and the Co-Zr system and their application to amorphous phase formation10.1051/jphyscol:1990411 ↗
20. Prediction of amorphous phase stability in the metal-silicon systems10.1063/1.1381002 ↗
21. Determination of chemical and magnetic interchange energies in BCC alloys
22. The role of magnetism in the calculation of phase diagrams10.1016/0378-4363(81)91004-4 ↗
23. A model for alloying effects in ferromagnetic metals10.1016/0364-5916(78)90011-1 ↗
24. Thermodynamics and kinetics of metallic amorphous phases in the framework of the CALPHAD approach10.1016/j.calphad.2007.12.002 ↗
25. Phase diagrams and glass formation in metallic systems10.1002/adem.200700045 ↗
26. SGTE data for pure elements10.1016/0364-5916(91)90030-N ↗
27. NIST-JANAF tables, 4thd. Edition
28. The Thermo-Calc databank system10.1016/0364-5916(85)90021-5 ↗
29. 2017
30. Thurnay · 1998
31. Algebraic representation of thermodynamic properties and the classification of solutions10.1021/ie50458a036 ↗
32. Thermodynamic assessment of Fe3Mn3Nb3N and Nb3C3Nsystems10.1016/j.calphad.2012.11.001 ↗
33. Critical thermodynamic evaluation and optimization of the Fe–B, Fe–Nd, B–Nd and Nd–Fe–B systems10.1016/j.jallcom.2012.08.127 ↗
34. Thermodynamic modeling of the Nb–B system10.1016/j.intermet.2006.10.054 ↗
35. New data on phase equilibria in the Nb-rich region of the Nb-B system10.1361/105497103770330758 ↗
36. Rudy · 1969
37. Júnior · 2001
38. The iron-niobium phase diagram
39. The effect of rare earth additions on the glass forming ability and magnetic properties of Fe-B-Nb alloys
40. Effect of minor additions on the glass forming ability and magnetic properties of Fe–Nb–B based metallic glasses10.1016/j.intermet.2009.12.006 ↗
41. Porter · 1992
42. Use of metastable phase diagrams in rapid solidification
43. Relationships between phase diagrams, the to, and Tn temperatures, cooling rates and glass forming ability10.1557/PROC-19-241 ↗
44. Study of crystallization process of Fe65Nb10B25 and Fe70Nb10B20 glassy metals
45. Predictive modeling of glass forming ability in the Fe-Nb-B system using the CALPHAD approach10.1016/j.jallcom.2016.12.049 ↗
46. Influence of boron content on crystallization and magnetic properties of ternary FeNbB amorphous alloys10.1002/pssa.200925356 ↗
47. The influence of Nb and Zr on glass-formation ability in the ternary Fe–Nb–B and Fe–Zr–B and quaternary Fe–(Nb,Zr)–B alloy systems10.1557/JMR.2008.0055 ↗
48. New ternary Fe-based bulk metallic glass with high boron content10.1080/09500830600696344 ↗
49. Bulk amorphous metal—an emerging engineering material10.1007/BF02822619 ↗
50. Applications of Gibbs energy-composition diagrams