Skip to main content
SpringerLink
Log in

Revisit the Type II Corrosion Mechanism

  • Topical Collection: Superalloys and Their Applications
  • Published:
Metallurgical and Materials Transactions A Aims and scope Submit manuscript

Abstract

Since it was first proposed in the early 1980s, Type II hot corrosion has been widely cited in the literature as a process of molten sulfate attack on high-temperature alloy components. In the current study, typical Type II corrosion pits observed on field components were characterized using high-resolution TEM technique. The corrosion products in the pits were found to be mainly of nanosized sulfides and oxides, but not of the hypothesized sulfates. The results suggest a solid-phase corrosion process involving the cooperative precipitation of fine sulfides and oxides at the corrosion front.

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

Similar content being viewed by others

References

  1. J. Stringer, Annual Review of Materials Research 1976, vol. 7, p. 477–509.

    Google Scholar 

  2. Bornstein N.S. Journal of Metals 1996, vol. 11, p. 37–39.

    Google Scholar 

  3. Pettit F, Oxidation of Metals 2011, vol. 76, p. 1–21.

    Article  Google Scholar 

  4. K.L. Luthra: Metall. Trans., 1982, vol. 13A, pp. 1647–54, 1853–64.

  5. N.S. Bornstein and M.A. DeCrescente: Metall. Trans., 1971, pp. 2875–83.

  6. J.A. Goebel and F.S. Pettit: Metall. Trans., 1970, pp. 1943–54.

  7. K.T. Chiang, F.S. Pettit, and G.H. Meier: in High Temperature Corrosion, NACE-6, R.A. Rapp, ed., Houston, 1981, pp. 519–30.

  8. Lillerud KP, Kofstad P, Oxidation of Metals 1984, vol. 21, pp. 233–70.

    Article  Google Scholar 

  9. Lortrakul P, Trice RW, Trumble KP, Dayananda MA, Corrosion Science 2014, vol. 80, pp. 408–15.

    Article  Google Scholar 

  10. Sumner J, Encinas-Oropesa A, Simms NJ, Nicholls JR, Oxidation of Metals 2013, vol. 80, pp. 553–63.

    Article  Google Scholar 

  11. Haight H, Potter A, Sumner J, Gray S, Oxidation of Metals 2015, vol. 84, pp. 607–19.

    Article  Google Scholar 

  12. Gheno T and Gleeson B, Oxidation of Metals 2015, vol. 84, pp. 567–84.

    Article  Google Scholar 

  13. Gheno T, Azar MZ, Heuer AH, Gleeson B, Corrosion Science 2015, vol. 10, p. 32–46.

    Article  Google Scholar 

  14. Task MN, Gleeson B, Pettit FS, Meier GH, Oxidation of Metals 2013, vol. 80, pp. 541–52.

    Article  Google Scholar 

  15. C.S. Giggins and F.S. Pettit: Hot Corrosion Degradation of Metals and Alloys—A Unified Theory, PWA Report No. FR-11545, 1979, pp. 1–65.

  16. Rapp RA, Corrosion Science 2002, vol. 44, pp. 209–21.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. GE Aviation, One Neumann Way, Cincinnati, OH, 45215, USA

    Wei-Jun Zhang

  2. GE Global Research Center, One Research Circle, Niskayuna, NY, 12309, USA

    Reza Sharghi-Moshtaghin

Authors
  1. Wei-Jun Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Reza Sharghi-Moshtaghin
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Wei-Jun Zhang.

Additional information

Manuscript submitted March 12, 2018.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhang, WJ., Sharghi-Moshtaghin, R. Revisit the Type II Corrosion Mechanism. Metall Mater Trans A 49, 4362–4372 (2018). https://doi.org/10.1007/s11661-018-4755-4

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11661-018-4755-4

Search

Navigation