Selection of a micro-alloying interface active component to stabilize the interface between droplets and liquid matrix in monotectic alloys
Source abstract
Abstract
An analytical model is developed to calculate the segregation behavior of a micro-alloying element to the liquid/liquid interface and its effect on the liquid/liquid interfacial energy during the solidification of a monotectic alloy based on the thermodynamics of alloys. Experiments are carried out with Al-Bi alloy micro-alloyed by different elements. The model is verified by the experimental results. Calculation results demonstrate that, for an A-B monotectic system, the segregation behavior of the micro-alloying element i depends on the partition coefficient Ki (ratio of the mole fraction of i in the B-rich melt to that in the A-rich melt), which is closely related to the atomic interaction energy parameters L A- i for the A- i binary alloy, L B- i for the B- i binary alloy, L A-B for the A-B binary alloy. A simple but efficient criterion is proposed based on Ki for choosing the interface active element i for the A-B monotectic alloy: K A < Ki < K B.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Solidification and crystal growth phenomena · Aluminum Alloy Microstructure Properties · Additive Manufacturing and 3D Printing Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Solidification of immiscible alloys: a review10.1007/s40195-016-0523-x ↗
2. Surfaces, interfaces and phase transitions in Al–In monotectic alloys10.1016/j.actamat.2010.02.015 ↗
3. Characteristics of liquid-liquid immiscibility in Al-Bi-Cu, Al-Bi-Si, and Al-Bi-Sn monotectic alloys: differential scanning calorimetry, interfacial tension, and density difference measurements
4. Solidification microstructure and dynamics of metastable phase transformation in undercooled liquid Cu-Fe alloys10.1016/j.actamat.2005.12.023 ↗
5. Liquid phase separation and monotectic structure evolution of ternary Al62.6Sn28.5Cu8.9 immiscible alloy within ultrasonic field10.1016/j.matlet.2014.11.087 ↗
6. Solidification of Al-Sn-Cu based immiscible alloys under intense shearing10.1007/s11661-009-9918-x ↗
7. Solidification of Al-Bi-Sn immiscible alloy under microgravity conditions of space10.1016/j.scriptamat.2018.12.010 ↗
8. Composition-dependence of core-shell microstructure formation in monotectic alloys under reduced gravity conditions10.1016/j.jallcom.2015.12.015 ↗
9. Interfacial tension, wetting and nucleation in Al–Bi and Al–Pb monotectic alloys10.1016/j.actamat.2011.07.031 ↗
10. Effect of TiC particles on the liquid–liquid decomposition of Al–Pb alloys10.1016/j.matdes.2015.11.090 ↗
11. Microstructure evolution during the liquid-liquid phase transformation of Al-Bi alloys under the effect of TiC particles10.1016/j.actamat.2017.02.071 ↗
12. Phase separation in monotectic alloys as a route for liquid state fabrication of composite materials10.1007/s10853-012-6660-3 ↗
13. A new class of engineering materials: particle-stabilized metallic emulsions and monotectic alloys10.1007/s11661-009-9857-6 ↗
14. Monotectic Al/Cd alloys with homogeneously dispersed Cd-droplets stabilized by strontium aluminide precipitates10.1016/j.intermet.2010.10.005 ↗
15. Inversion of a liquid Bi/Al metallic emulsion stabilized by solid SiC particles10.1016/j.colsurfa.2011.01.028 ↗
16. Stabilization of metallic emulsions by in-situ precipitating intermetallic layers10.1016/j.intermet.2012.03.048 ↗
17. A model describing the microstructure evolution during a cooling of immiscible alloys in the miscibility gap10.1016/j.scriptamat.2003.10.024 ↗
18. Phase-field model for solidification of a monotectic alloy with convection
19. Nucleation determined microstructure formation in immiscible alloys10.1016/j.matlet.2008.04.070 ↗
20. Effect of Cu and Sn on liquid–liquid interfacial energy in ternary and quaternary Al–Bi-based monotectic alloys10.1016/j.msea.2007.08.097 ↗
21. Solidification of Al-Bi alloy and influence of microalloying element Sn
22. Effect of micro-alloying element Bi on Solidification and microstructure of Al-Pb alloy
23. Hao · 2010
24. The exponential excess Gibbs energy model revisited10.1016/j.calphad.2017.01.002 ↗
25. Interfacial energy between Al melt and TiB2 particles and efficiency of TiB2 particles to nucleate α-Al10.1016/j.scriptamat.2018.09.042 ↗
26. A general model to calculate coherent solid/solid and immiscible liquid/liquid interfacial energies10.1016/j.calphad.2019.03.004 ↗
27. Modelling interfacial energies in metallic systems10.4028/www.scientific.net/MSF.473-474.1 ↗
28. Partial surface tension of components of a solution10.1021/acs.langmuir.5b00217 ↗
29. J.W. McBain, G.F. Mills, The adsorption theorem of J. Willard Gibbs. Anomalies in applying it to surface tension curves that exhibit minima in dilute solution, 5 (1938) 30–45.10.1088/0034-4885/5/1/305 ↗
30. Iida · 1993
31. Experimental investigation and thermodynamic calculation of the phase equilibria in the Al-Bi-Sn ternary system10.1007/s11669-011-9975-x ↗
32. The Ag–Al–Cu system Part I: reassessment of the constituent binaries on the basis of new experimental data
33. Thermodynamics and phase diagram calculation of some sections in the Ag–Bi–Sn system10.2298/JSC0709901Z ↗
34. Integrated approach to thermodynamics, phase relations, liquid densities and solidification microstructures in the Al–Bi–Cu system10.3139/146.110009 ↗
35. Liquid–liquid phase equilibria, density difference, and interfacial tension in the Al–Bi–Si monotectic system10.1007/s10853-009-3713-3 ↗
36. A new thermodynamic description of the Bi-Pb-Sn system10.1007/s11669-017-0572-5 ↗