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Interplay between oxidation and wear behavior of the Ti-48Al-2Cr-2Nb-1B alloy

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Abstract

This study deals with some aspects of the dry sliding behavior of a gamma TiAl-based alloy with the following composition: Ti-48Al-2Cr-2Nb-1B (at. pct). The tribological system consisted of an AISI M2 steel disk sliding against TiAl alloy sheets. Different alloy microstructures—duplex, equiaxed, and lamellar—were considered, in order to check for their possible effect on the wear behavior. At low loads, a mainly abrasive mechanism was inferred from the phases present in the debris collected at the end of each test. An additional contribution from oxidational phenomena was found at higher loads. In such conditions, the equiaxed samples displayed a slightly better wear resistance. A remarkable improvement in wear resistance was observed when the alloy specimens were tested without a preliminary removal of the surface layer which resulted from the heat treatments carried out to obtain different microstructures. Again, some differences were found in the wear behavior of alloys with different microstructures. In this case, though, the difference can rather be attributed to the different morphology of the surface layers. Better performances were observed in those samples, both duplex and equiaxed, in which a good mechanical matching between the alloy and the outer scale was accomplished, thanks to the presence of a hardened interdiffusion zone. An aspect which should be considered further is the tribological coupling of the as-treated alloys. Indeed, the elevated hardness and surface roughness of the coating yields a significant wear of the sliding counterface.

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References

  1. Y.-W. Kim: in Gamma Titanium Aluminides, Y.-W. Kim, R. Wagner, and M. Yamaguchi, eds. TMS, Warrendale, PA, 1995, pp. 637–54.

    Google Scholar 

  2. D.M. Dimiduk: in Gamma Titanium Aluminides, Y.-W. Kim, R. Wagner, and M. Yamaguchi, eds., TMS, Warrendale, PA, 1995, pp. 3–20.

    Google Scholar 

  3. Y-W. Kim: JOM, 1994, vol. 46 (7), pp. 30–39.

    CAS  Google Scholar 

  4. K.S. Chan: JOM, 1997, vol. 49 (7), pp. 53–58.

    CAS  Google Scholar 

  5. Y.-W. Kim: Mater. Sci. Eng. A, 1995, vols. 192–193, pp. 519–26.

    Google Scholar 

  6. C.T. Liu, J.H. Schneibel, P.J. Maziasz, J.L. Wright, and D.S. Easton: Intermetallics, 1996, vol. 4, pp. 429–40.

    Article  CAS  Google Scholar 

  7. A. Rhamel, W.J. Quadakkers, and M. Schultze: Mater. Corr., 1995, vol. 46, pp. 271–85.

    Article  Google Scholar 

  8. M.P. Brady, W.J. Brindley, J.L. Smialek, and I.E. Locci: JOM, 1996, vol. 48 (11), pp. 46–54.

    CAS  Google Scholar 

  9. M.P. Brady, J.L. Smialek, J. Smith, and D.L. Humphreys: Acta Mater., 1997, vol. 45, pp. 2357–69.

    Article  CAS  Google Scholar 

  10. M.P. Brady, J.L. Smialek, D.L. Humphreys, and J. Smith: Acta Mater., 1997, vol. 45, pp. 2371–82.

    Article  CAS  Google Scholar 

  11. M.M. Keller, P.E. Jones, W.J. Porter III, and D. Eylon: JOM, 1997, vol. 49 (5), pp. 42–44.

    CAS  Google Scholar 

  12. S.E. Hartfield-Wunsch, A.A. Sperling, R.S. Morrison, W.E. Dowling, Jr., and J.E. Allison: in Gamma Titanium Aluminides, Y.-W. Kim, R. Wagner, and M. Yamaguchi, eds., TMS, Warrendale, PA, 1995, pp. 41–52.

    Google Scholar 

  13. G. Straffelini, R. Dorigatti, and S. Gialanella: Mater. Sci. Technol., 1998, vol. 14, pp. 143–50.

    CAS  Google Scholar 

  14. O. Vingsbo and S. Hogmark: in Fundamental of Friction and Wear of Materials, D.A. Rigney, ed., ASM, Materials Park, OH, 1980, pp. 373–408.

    Google Scholar 

  15. A. Molinari, G. Straffelini, B. Tesi, and T. Bacci: Wear, 1997, vol. 208, pp. 105–12.

    Article  CAS  Google Scholar 

  16. S. Taniguchi, Y. Tachikawa, and T. Shibata: Mater. Sci. Eng. A, 1997, vol. 232, pp. 47–54.

    Article  Google Scholar 

  17. J. Jiang, F.H. Stott, and M.M. Stack: Wear, 1995, vols. 181–183, pp. 20–31.

    Article  Google Scholar 

  18. I.M. Hutchings: Tribology, Edward Arnold Publishers, London, 1992, p. 91.

    Google Scholar 

  19. F.H. Stott and G.C. Wood: Tribology Int., 1978, vol. 14, pp. 123–32.

    Google Scholar 

  20. M. Woydt, A. Skopp, and K. Witke: Wear, 1998, vol. 218, pp. 84–95.

    Article  CAS  Google Scholar 

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Gialanella, S., Straffelini, G. Interplay between oxidation and wear behavior of the Ti-48Al-2Cr-2Nb-1B alloy. Metall Mater Trans A 30, 2019–2026 (1999). https://doi.org/10.1007/s11661-999-0012-1

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  • DOI: https://doi.org/10.1007/s11661-999-0012-1

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