Skip to main content
SpringerLink
Log in

TEM Study of the Initial Oxidation of Ti42Al48Cr8Ag2

  • Original Paper
  • Published:
Oxidation of Metals Aims and scope Submit manuscript

Abstract

A microstructural investigation of oxide scales was carried out by analytical electron microscope (AEM) after the as-cast Ti42Al48Cr8Ag2 alloy was exposed to air at 1,173 K for 5, 30 and 180 min, respectively. The results indicated that the formation of oxide scale experiences a transformation from ternary-layer system consisting of an outmost rutile (TiO2-rich) layer, mid amorphous alumina and inner nitrides to a double-layer of TiO2 and Al2O3-rich with increasing time from 5 to 30 min. In the subsurface zone, a change was also found a metastable Cr-rich new phase with bcc structure of a = 1.371 nm formed in addition to the oxidation for X-phase during 30 min. After 180 min, a continuous Laves-phase layer formed instead at the same position. In addition, the process revealed that amorphous alumina changed to a metastable structure before stable α-Al2O3 formed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

References

  1. S. A. Kekare and P. B Aswath, Journal of Material Science 32, 2485–2499 (1997).

    Article  CAS  Google Scholar 

  2. A. Rahmel, W. J. Quadakkers and M. Schütze, Materials and Corrosion 46, 271–285 (1995).

    Article  CAS  Google Scholar 

  3. S. Becker, A. Rahmel and M. Schutze, Oxidation of Metals. 38, 425–464 (1992).

    Article  CAS  Google Scholar 

  4. Y. Shida and H. Anada, Oxide Metal. 45, 197–219 (1996).

    Article  CAS  Google Scholar 

  5. J. W. Fergus, Materials Science and Engineering A 338, 108–125 (2002).

    Article  Google Scholar 

  6. S. Taniguchi, Materials and Corrosion 48, 1–9 (1997).

    Article  Google Scholar 

  7. M. P. Brady, J. L. Smialek, J. Smith and D. L. Humphrey, Acta Mater 45, 2357–2369 (1997).

    Article  CAS  Google Scholar 

  8. M. P. Brady, J. L. Smialek, D. L. Humphrey and J. Smith, Acta Mater. 45, 2371–2382 (1997).

    Article  CAS  Google Scholar 

  9. J. M. Rakowski, F. S. Pettit, G. H. Meier, F. Dettenwanger, E. Schumann and M. Ruhle, Scripta Metallurgica Et Materialia 33, 997–1003 (1995).

    Article  CAS  Google Scholar 

  10. T. Zhaolin and W. Fuhui, The Chinese Journal of Nonferrous Metals 8, 245–249 (1998).

    Google Scholar 

  11. Z. Tang, V. Shemet, L. Niewolak, L. Singheiser and W. J. Quadakkers, Intermetallics 11, 1–8 (2004).

    Article  Google Scholar 

  12. Z. Tang, L. Niewolak, V. Shemet, L. Singheiser, W. J. Quadakkers, F. Wang, W. Wu and A. Gil, Material Science and Engineering 328A, 297–301 (2002).

    Article  Google Scholar 

  13. C. Lang and M. Schutze, Oxide Metal 46, 255–285 (1996).

    Article  CAS  Google Scholar 

  14. M. Tinker and P. A. Labun, Oxidation of Metals 18, 27–40 (1982).

    Article  CAS  Google Scholar 

  15. Robert J. Keyse, Anthony J. Garratt-Reed, Peter J. Goodhew, Goodon W. Lorimer. Introduction to Scanning Transmission Electron Microscopy (Springer, 1998).

  16. M. P. Brady, J. L. Smialek and F. Terepka, Scripta Metallurgica Et Materialia 32, 1659–1664 (1995).

    Article  CAS  Google Scholar 

  17. J. Doychak, J. L. Smialek and T. E. Mitchell, Metallurgical Transactions A 20, 499–518 (1989).

    Google Scholar 

  18. J. C. Yang, E. Schumann, I. Levin and M. Rühle, Acta Materialia 46, 2195–2201 (1998).

    Article  CAS  Google Scholar 

  19. X. Yanjun, H. Lianlong and W. Fuhui, Journal of Chinese society for corrosion and protection 25, 135–141 (2005).

    Google Scholar 

  20. N. Zheng, W. Fischer, H. Grubmeier, V. Shemet and W. J. Quadakkers, Scipta Metallurgica Et Materialia 33, 47–53 (1995).

    Article  CAS  Google Scholar 

  21. N. Zheng, W. J. Quadakkers, A. Gil and H. Nickel, Oxide Metal 40, 477–499 (1995).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. College of Sciences, Northeastern University, Shenyang, 110004, China

    Changyou Guo & Caibei Zhang

  2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    Changyou Guo, Wei Lu, Lianlong He & Fuhui Wang

  3. Zhongyuan University of Technology, Zhengzhou, 450007, China

    Yanjun Xi

Authors
  1. Changyou Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Caibei Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Wei Lu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Lianlong He
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Yanjun Xi
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Fuhui Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Caibei Zhang.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Guo, C., Zhang, C., Lu, W. et al. TEM Study of the Initial Oxidation of Ti42Al48Cr8Ag2 . Oxid Met 68, 65–76 (2007). https://doi.org/10.1007/s11085-007-9061-2

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11085-007-9061-2

Keywords

Search

Navigation