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Thermodynamic Assessment of the Ti-Ir System

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Abstract

The thermodynamic assessment of the binary system Ti-Ir has been carried out by modeling the Gibbs energy of all individual phases using the calculation of phase diagrams approach based on the available literature data including the phase equilibria and thermodynamic properties. The Gibbs free energies of the liquid, bcc, fcc and hcp phases were described by the subregular solution model with Redlich-Kister formula, and those of the intermetallic compounds (Ti3Ir, γTiIr, βTiIr and TiIr3) in the Ti-Ir binary system were described by the two-sublattice model. The calculations are in good agreement with the literature data on both phase equilibria and thermodynamic properties in the Ti-Ir system.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 51031003/51171159/U1230119), the Ministry of Education of China (Grant No. 20120120130004) and Fujian Provincial Department of Science and Technology (Grant No. 2011HZ00004-1). The supports from the China Aviation Industry Group are also acknowledged.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P. R. China

    Cuiping Wang, Yihui Guo, Yong Lu & Xingjun Liu

  2. Research Center of Materials Design and Applications, Xiamen University, Xiamen, 361005, P. R. China

    Cuiping Wang, Yong Lu & Xingjun Liu

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  1. Cuiping Wang
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  2. Yihui Guo
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  3. Yong Lu
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Correspondence to Xingjun Liu.

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Wang, C., Guo, Y., Lu, Y. et al. Thermodynamic Assessment of the Ti-Ir System. J. Phase Equilib. Diffus. 35, 269–275 (2014). https://doi.org/10.1007/s11669-014-0302-1

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  • DOI: https://doi.org/10.1007/s11669-014-0302-1

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