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An assessment of Fe-Nb-B melts using the two-state liquid model
- Alvares, E. D. (author)
- Botta, W. J. (author)
-
- Ågren, John (author)
- KTH,Materialvetenskap
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- Costa e Silva, A. (author)
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- (creator_code:org_t)
- Elsevier Ltd, 2020
- 2020
- English.
- In: Calphad. - : Elsevier Ltd. - 0364-5916 .- 1873-2984. ; 68
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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 Ågren'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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Amorphous alloys
- Liquids
- Niobium alloys
- Phase transitions
- Supercooling
- Wear resistance
- Amorphous phase
- CALPHAD method
- Liquid models
- Metallic alloys
- Petrochemical industry
- Supercooled liquids
- Thermodynamic modelling
- Two-state model
- Iron alloys
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Royal Institute of Technology
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