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On the Liquid/Solid Phase Equilibria in the Al-Rich Corner of the Al-Si-Ti Ternary System

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Abstract

The nature of liquid-solid phase equilibria in the Al-rich corner of the Al-Si-Ti system are determined by drawing three isothermal sections at 620, 680 and 727 °C. The solubility of Ti in Al-Si liquids is determined for four different compositions (0, 9, 13 and 18 at.%Si) at temperature below 800 °C. Combination of the two sets of experimental results leads to an attempt of liquidus projection. The primary crystallization surface of Al3Ti is found to extend up to 9.5 at.%Si in the liquid phase at 620 °C and 11 at.%Si at 727 °C. The solubility of Ti is found to be not significantly dependent on the Si content of the liquid. From DSC measurements and deduction on microstructure, the last invariant reaction of the solidification path is found to be quasi-peritectic: \({\text{L}} + \uptau_{1} - {\text{Ti}}_{7} {\text{Al}}_{5} {\text{Si}}_{12} \Leftrightarrow {\text{Al}} + {\text{Si}} .\)

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References

  1. M. Easton and D. Stjohn, Grain Refinement of Aluminum Alloys: Part I. The Nucleant and Solute Paradigms—A Review of the Literature, Metall. Mater. Trans. A, 1999, 30(6), p 1613-1623

    Article  Google Scholar 

  2. M. Easton and D. StJohn, Grain Refinement of Aluminum Alloys: Part II. Confirmation of, and a Mechanism for, the Solute Paradigm, Metall. Mater. Trans. A, 1999, 30(6), p 1625-1633

    Article  Google Scholar 

  3. L. Arnberg, L. Bäckerud, and H. Klang, Intermetallic Particles in Al-Ti-B-Type Master Alloys for Grain Refinement of Aluminium, Met. Technol., 1972, 9(1), p 7-13

    Article  Google Scholar 

  4. B.S. Murty, S.A. Kori, and M. Chakraborty, Grain Refinement of Aluminium and Its Alloys by Heterogeneous Nucleation and Alloying, Int. Mater. Rev., 2002, 47(1), p 3-29

    Article  Google Scholar 

  5. M. Abdel-Reihim, N. Hess, W. Reif, and M.E.J. Birch, Effect of Solute Content on the Grain Refinement of Binary Alloys, J. Mater. Sci., 1987, 22(1), p 213-218

    Article  ADS  Google Scholar 

  6. M. Johnsson, Influence of Si and Fe on the Grain-Refinement of Aluminum, Z. Metall., 1994, 85(11), p 781-785

    Google Scholar 

  7. J.A. Spittle, J.M. Keeble, and M.A. Meshhedani, The Grain Refinement of Al-Si Foundry Alloys, Light Metals, R. Huglen, Ed., TMS, Warrendale, PA, 1997, p 795-800

    Google Scholar 

  8. T.E. Quested, A.T. Dinsdale, and A.L. Greer, Thermodynamic Evidence for a Poisoning Mechanism in the Al-Si-Ti System, Mater. Sci. Technol., 2006, 22(6), p 1126-1134

    Article  Google Scholar 

  9. P. Perrot, The Al-Si-Ti System, Ternary Alloys, G. Petzow and G. Effenberg, Ed., VCH, Weinheim, 1988, p 557

    Google Scholar 

  10. A. Zakharov, I. Guldin, A. Arnold, and Y. Matsenko, Phase-Equilibria in the Al-Si-Ti System in the 10-14 Percent Si and 0-6 Percent Ti Concentration Range, Russ. Metall., 1998, 4, p 185-189

    Google Scholar 

  11. M. Peronnet, F. Barbeau, F. Bosselet, J.C. Viala, and J. Bouix, Comportement Chimique du Titane Dans un Alliage Liquide Aluminium-Silicium, J. Phys. IV, 1999, 9(PR4), p 6

    Google Scholar 

  12. S. Liu, F. Weitzer, J.C. Schuster, N. Krendelsberger, and Y. Du, On the Reaction Scheme and Liquidus Surface in the Ternary System Al-Si-Ti, Int. J. Mater. Res., 2008, 99(7), p 705-711

    Article  Google Scholar 

  13. O. Shob, H. Nowotny, and F. Benezovsky, The Ternary System (Titanium, Zirconium, Hafnium) Aluminum-Silicon, Planseeber. Pulvermetall., 1962, 10, p 65-71

    Google Scholar 

  14. S. Gupta, Intermetallic Compounds in Diffusion Couples of Ti with an Al-Si Eutectic Alloy, Mater. Charact., 2002, 49(4), p 321-330

    Article  Google Scholar 

  15. M. Bulanova, L. Tretyachenko, M. Golovkova, and K. Meleshevich, Phase Equilibria in the α-Ti-Al-Si Region of the Ti-Si-Al System, J. Phase Equilib. Diffus., 2004, 25(3), p 209-229

    Article  Google Scholar 

  16. W.V. Youdelis, Calculated Al-Ti-Si Phase Diagram and Interpretation of Grain Refinement Results, Met. Sci., 1978, 12(8), p 363-366

    Article  Google Scholar 

  17. J. Gröbner, D. Mirković, and R. Schmid-Fetzer, Thermodynamic Aspects of Grain Refinement of Al-Si Alloys Using Ti and B, Mater. Sci. Eng. A, 2005, 395(1-2), p 10-21

    Article  Google Scholar 

  18. A. Raman and K. Schubert, The Constitution of Some Alloy Series Related to TiAl3. II. Investigations in Some T-Al-Si and T4…6-In Systems, Z. Metall., 1965, 56(1), p 44-52

    Google Scholar 

  19. T. Magnusson and L. Arnberg, Density and Solidification Shrinkage of Hypoeutectic Aluminum-Silicon Alloys, Metall. Mater. Trans. A, 2001, 32(10), p 2605-2613

    Article  Google Scholar 

  20. J. Pouchou and F. Pichoir, Very High Elements x-Ray-Microanalysis—Recent Models of Quantification, J. Microsc. Spectrosc. Electron., 1986, 11(4), p 229-250

    Google Scholar 

  21. C.J. Smithells, W.F. Gale, and T.C. Totemeier, Smithells Metals Reference Book, Volume 1, 4th ed., Butterworths, London, 1967

    Google Scholar 

  22. C. Brukl, H. Nowotny, O. Schob, and F. Benesovsky, Die Kristallstruckturen von TiSi, Ti(Al, Si)2 und Mo(Al, Si)2, Monatsh. Chem., 1961, 92(3), p 781-788

    Article  Google Scholar 

  23. O. Dezellus, B. Gardiola, and J. Andrieux, On the solubility of Group IV elements (Ti, Zr, Hf) in liquid aluminium below 800 °C, J. Phase Equilib. Diff., 2014. doi:10.1007/s11669-013-0278-2

  24. U.R. Kattner, J.-C. Lin, and Y.A. Chang, Thermodynamic Assessment and Calculation of the Ti-Al System, Metall. Trans. A, 1992, 23(8), p 2081-2090

    Article  Google Scholar 

  25. K. Shibata, T. Sato, and G. Ohira, The Solute Distributions in Dilute Al-Ti Alloys During Unidirectional Solidification, J. Cryst. Growth, 1978, 44(4), p 435-445

    Article  ADS  Google Scholar 

  26. A. Abdel-Hamid, C.H. Allibert, and F. Durand, Equilibrium Between Titanium-Aluminum (TiAl3) and Molten Aluminum: Results from the Technique of Electromagnetic Phase Separation, Z. Metall., 1984, 75(6), p 455-458

    Google Scholar 

  27. W.L. Fink, H. Van, and P.M. Budge, Constitution of high-purity aluminum-titanium alloys, Am. Inst. Min. Met. Eng., 1931, 393, p 18

    Google Scholar 

  28. M. Heckler, Solubility of Titanium in Liquid Aluminum, Aluminium (Dusseldorf), 1974, 50(6), p 405-407

    Google Scholar 

  29. V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, and T.Y. Velikanova, The Al-B-Nb-Ti System: III. Thermodynamic Re-evaluation of the Constituent Binary System Al-Ti, J. Alloys Compd., 2008, 465(1-2), p 64-77

    Article  Google Scholar 

  30. I. Ohnuma, Y. Fujita, H. Mitsui, K. Ishikawa, R. Kainuma, and K. Ishida, Phase Equilibria in the Ti-Al Binary System, Acta Mater., 2000, 48(12), p 3113-3123

    Article  Google Scholar 

  31. A. Prince, Alloy Phase Equilibria, Elsevier Science, Amsterdam, 1966

    Google Scholar 

  32. J.C. Schuster and M. Palm, Reassessment of the Binary Aluminum-Titanium Phase Diagram, J. Phase Equilib. Diffus., 2006, 27(3), p 255-277

    Article  Google Scholar 

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Acknowledgments

Chemical microanalyses have been performed by the inorganic analysis team of Dr. Ayouni of the Analytical Sciences Institute. SEM and EPMA characterizations were performed at the ‘‘Centre Technologique des Microstructures, Université Lyon 1’’. The authors acknowledge gratefully the members of these services for their assistance.

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Dezellus, O., Gardiola, B., Andrieux, J. et al. On the Liquid/Solid Phase Equilibria in the Al-Rich Corner of the Al-Si-Ti Ternary System. J. Phase Equilib. Diffus. 35, 137–145 (2014). https://doi.org/10.1007/s11669-014-0282-1

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