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Microstructural Evolution and Mechanical Properties of a Multicomponent Nb-16Si-22Ti-2Al-2Hf-2Cr Alloy Prepared by Reactive Hot Press Sintering

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Abstract

In this paper, the effect of reactive hot press sintering (RHPS) parameters, such as milling time, hot pressing temperature, and heat treatment, on phase constitution, microstructure, and room temperature mechanical properties of a multicomponent Nb-16Si-22Ti-2Hf-2Al-2Cr alloy prepared from ball milled powder mixture is investigated. Evaluation of the microstructure revealed that all as-sintered and heat-treated samples mainly consisted of particles of Nb and Ti solid solutions (NbSS and TiSS), as well as a niobium silicide β-Nb5Si3 matrix, with a small quantity of Hf solid solution particles (HfSS). By sintering at 1773 K and 1873 K (1500 °C and 1600 °C), most of the NbSS phase in the samples prepared from 5 and 10 ball milled powder mixtures showed a narrow strip morphology. Upon increasing the milling time to 20 hours, the morphology changed to a near-equiaxed shape, which became finer with increased milling time. In contrast, the TiSS phase in all as-sintered samples more or less had a near-equiaxed shape. Spheroidizing tendency took place in both NbSS and TiSS phases during an annealing heat treatment at 1773 K (1500 °C) for 50 hours. Interestingly, when the milling time was extended from 5 to 20 hours, the volume fractions of the β-Nb5Si3 and TiSS phases increased, whereas that of the NbSS phase decreased. This resulted in the reduction of the fracture toughness K Q and an enhancement of the Vickers hardness Hv of the bulk as-sintered and heat-treated samples. A fractography analysis was also carried out to elucidate the fracture behavior of phases, with particular emphasis on the interaction between phases and cracks.

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References

  1. B.P. Bewlay, J.J. Lewandowksi and M.R. Jackson: JOM, 1997, vol. 49, pp. 44-45.

    Article  CAS  Google Scholar 

  2. B.P. Bewlay, H.A. Lipsitt, M.R. Jackson, W.J. Reeder, J.A. Sutliff (1995) Mater Sci Eng A 192:534-543.

    Google Scholar 

  3. P.R. Subramanian, M.G. Mendiratta, D.M. Dimiduk: JOM, 1996, vol. 48, pp. 33-38.

    Article  CAS  Google Scholar 

  4. J.D. Rigney and J.J. Lewandowksi: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3292-3306.

    Article  CAS  Google Scholar 

  5. C.L Ma, H. Tanaka, A. Kasama, R. Tanaka, Y. Mishima and S. Hanada, Proc. High Temperature Ordered Intermetallic Alloys IX, 2001, vol. 646, pp. N5.39.1–39.6.

  6. M. Bannister, H. Shercliff, G. Bao, F. Zok and M.F. Ashby: Acta Metall. Mater., 1992, vol. 40, pp. 1531-1537.

    Article  CAS  Google Scholar 

  7. Y. Kimura, Y. Mishima, H. Yamaoka and N. Sekido: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 483-488.

    Article  CAS  Google Scholar 

  8. B.P. Bewlay, M.R. Jackson, P.R. Subramanian and J.C. Zhao: Metall. Mater. Trans. A, 2003, vol. 34A, pp. 2043-2052.

    Article  CAS  Google Scholar 

  9. W.Y. Kim, H. Tanaka and S. Hanada: Intermetallics, 2002, vol. 10, pp. 625-634.

    Article  CAS  Google Scholar 

  10. B.P. Bewlay, M.R. Jackson and A. Lipsitt: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3801-3808.

    Article  CAS  Google Scholar 

  11. J. Kim, T. Tabaru, M. Sakamoto and S. Hanada: Mater. Sci. Eng. A, 2004, vol. 372A, pp. 137-144.

    Google Scholar 

  12. A.J. Gavens, D.V. Heerden, T. Foecke and T.P. Weihs: Metall. Mater. Trans. A, 1999, vol. 30A, pp. 2959-2965.

    Article  CAS  Google Scholar 

  13. M.N.R.V. Perdigão, J.A.R. Jordão, C.S. Kiminami and W.J.F. Botta: J. Non-Cryst. Solids, 1997, vol. 219, pp. 170-175.

    Article  Google Scholar 

  14. G.J. Fan, M.X. Quan, Z.Q. Hu, J. Eckert and L. Schultz: Scripta Mater., 1999, vol. 41, pp. 1147-1151.

    Article  CAS  Google Scholar 

  15. Z. Li and L.M. Peng: Acta Mater., 2007, vol. 55, pp. 6573-6585.

    Article  CAS  Google Scholar 

  16. B.W. Xiong, W.Y. Long, Z. Chen, C. Xia, H. Wan and Y.W. Yan: J. Alloys Compd., 2009, vol. 471, pp. 404-407.

    Article  CAS  Google Scholar 

  17. X.L. Wang, G.F. Wang and K.F. Zhang: Mater. Sci. Eng. A, 2010, vol. 527A, pp. 3253-3258.

    Google Scholar 

  18. X.L. Wang, G. Wang and K.F. Zhang: J. Alloys Compd., 2010, vol. 502, pp. 310-318.

    Article  CAS  Google Scholar 

  19. J.L. Yu and K.F. Zhang: Scripta Mater., 2008, vol. 59, pp. 714-717.

    Article  CAS  Google Scholar 

  20. J.B. Sha, H. Hirai, H. Ueno, T. Tabaru, A. Kitahara, S. Hanada (2003) Metall. Mater. Trans. A 34A:85-94.

    Article  CAS  Google Scholar 

  21. J.L. Yu, K.F. Zhang, Z.K. Li, X. Zheng, G.F. Wang and R. Bai: Scripta Mater., 2009, vol. 61, pp. 620-623.

    Article  CAS  Google Scholar 

  22. M.G. Mendiratta and D.M. Dimiduk: Metall. Trans. A, 1993, vol. 24A, pp. 501-504.

    CAS  Google Scholar 

  23. K.S. Chan (2002) Mater. Sci. Eng. A 329:513-522.

    Google Scholar 

  24. D.L. Davidson, K.S. Chan and D.L. Anton: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3007-3018.

    Article  CAS  Google Scholar 

  25. J.B. Sha, H. Hirai, H. Ueno, T. Tabaru, A. Kitahara and S. Hanada: Metall. Mater. Trans. A, 2003, vol. 34A, pp. 2861-2871.

    Article  CAS  Google Scholar 

  26. C.Y. Yang, Y. Chen and J.B. Sha: Acta Aeronautica et Astronautica Sinica, 2010, vol. 31, pp. 1892-1899 (in Chinese).

    CAS  Google Scholar 

  27. J.B. Sha, C.Y. Yang and J. Liu: Scripta Mater., 2010, vol. 62, pp. 859-862.

    Article  CAS  Google Scholar 

  28. G. Shao: Intermetallics, 2005, vol. 13, pp. 69-78.

    Article  CAS  Google Scholar 

  29. X. Li, H. Chen, J. Sha and H. Zhang: Mater. Sci. Eng. A, 2010, vol. 527A, pp. 6140-6152.

    Google Scholar 

  30. M.F. Ashby, F.J. Blunt and M. Bannister: Acta Metall. Mater., 1989, vol. 37, pp.1847-1857.

    Article  CAS  Google Scholar 

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Acknowledgments

The authors are grateful to the support from the Program for New Century Excellent Talents in Universities (NCET-06-0173), the National Natural Sciences Foundation of P. R. China (grant no. 51071009 and 51171005), and the Aerospace Funding (grant no. 2010ZF51071).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Beihang University, Xueyuan Road No.37, Beijing, 100191, P.R. China

    W. Liu (Ph.D. Student), Y. M. Fu (Master Degree Student) & J. B. Sha (Professor)

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  1. W. Liu
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  2. Y. M. Fu
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  3. J. B. Sha
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Correspondence to J. B. Sha.

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Manuscript submitted April 18, 2012.

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Liu, W., Fu, Y.M. & Sha, J.B. Microstructural Evolution and Mechanical Properties of a Multicomponent Nb-16Si-22Ti-2Al-2Hf-2Cr Alloy Prepared by Reactive Hot Press Sintering. Metall Mater Trans A 44, 2319–2330 (2013). https://doi.org/10.1007/s11661-012-1571-0

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