Evaluation of Ti3Si Phase Stability from Heat-Treated, Rapidly Solidified Ti-Si Alloys

Abstract

Ti-base alloys containing significant amounts of silicon have been considered for high temperature structural applications. Thus, information concerning phase stability on the Ti-Si system is fundamental and there are not many investigations covering the phase stability of the Ti3Si phase, specially its dependence on oxygen/nitrogen contamination. In this work the stability of this phase has been evaluated through heat-treatment of rapidly solidified Ti-rich Ti-Si alloys at 700 °C and 1000 °C. The rapidly solidified splats presented nanometric scale microstructures which facilitated the attainment of equilibrium conditions. The destabilization of Ti3Si due to oxygen/nitrogen contamination has been noted.

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References

  1. 1.

    Y. Zhan, Z. Sun, J. Jiang, J. Ma, and Q. Guo, Isothermal Oxidation Behavior of Ti-Si Eutectic Alloys with Ai, and Nb Addition, Corrosion, 2008, 64(11), p 845-853

    Article  Google Scholar 

  2. 2.

    Y. Zhan, Y. Wang, J. Ma, L. He, Z. Yu, and H. Xie, Microstructural Characteristics and Elevated Temperature Wear of Ti-11Si-16Al Alloy, Int. J. Mater. Res., 2008, 99(1), p 75-83

    Google Scholar 

  3. 3.

    A.V. Masur, M.M. Gasik, and V.I. Mazur, Microstructure Formation in Ti-Si Composite Subjected to High Temperature Gradients, Z. Metallkd., 2005, 96(4), p 377-379

    Google Scholar 

  4. 4.

    D. Vojtech, B. Bártová, and T. Kubatik, High Temperature Oxidation of Ti-Si Alloys, Mater. Sci. Eng., 2003, A361, p 50-57

    Google Scholar 

  5. 5.

    H. Wu, Y.F. Han, Y.B. Zhou, and X.C. Chen, Microstructure and Fracture Mechanisms of Ti-Si Eutectic Alloys, Metallofiz. Nov. Tekh., 2002, 24(12), p 1697-1704

    Google Scholar 

  6. 6.

    B. Massalski, P.R. Subramanian, and H. Okamoto, Binary Alloy Phase Diagrams, ASM, Metals Park, 1990, p 3367-3371

  7. 7.

    W.J.J. Wakelkamp, F.J.J. van loo, and R. Metselaar, Phase Relations in the Ti-Si-C System. J. Eur. Ceram. Soc., 1991, 8(3), p 135-139

    Article  Google Scholar 

  8. 8.

    C. Suryanarayana, A. Inoue, and T. Masumoto, Transformation Studies and Mechanical Properties of Melt-Quenched Amorphous Titanium-Silicon, J. Mater. Sci., 1980, 15, p 1993-2000

    Article  ADS  Google Scholar 

  9. 9.

    A.S. Ramos, C.A. Nunes, and G.C. Coelho, On the Peritectoid Ti3Si Formation in Ti-Si Alloys, Mater. Charact., 2006, 56, p 107-111

    Article  Google Scholar 

  10. 10.

    W. Kraus and G. Nolze, Powder Cell—A Program for the Representation and Manipulation of Crystal Structures and Calculation of the Resulting X-ray Powder Pattern, J. Appl. Cryst., 1996, 29(3), p 301-303

    Article  Google Scholar 

  11. 11.

    P. Villars and L.D. Calvert, Pearson’s Handbook of Crystallographic Data for Intermetallic Phases, 2nd ed., ASM International, Materials Park, 1991, four volumes

    Google Scholar 

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Correspondence to Carlos Angelo Nunes.

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da Silva Costa, A.M., de Lima, G.F., Rodrigues, G. et al. Evaluation of Ti3Si Phase Stability from Heat-Treated, Rapidly Solidified Ti-Si Alloys. J. Phase Equilib. Diffus. 31, 22–27 (2010). https://doi.org/10.1007/s11669-009-9610-2

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Keywords

  • silicides
  • Ti alloys
  • Ti-Si system
  • Ti3Si