Skip to main content
SpringerLink
Log in

A Perspective on the High Resistance to Coarsening and Durability of Silicide Dispersions in RSPM Al-Fe-V-Si Alloys

  • Chapter
Science and Technology of Rapid Solidification and Processing

Part of the book series: NATO ASI Series ((NSSE,volume 278))

Abstract

Aluminium alloys for elevated temperature aerospace applications need a fine distribution of dispersoids which are stable to transformation and coarsening if they are to compete with Ti.

The α-silicide phase in rapidly solidified Al-Fe-V-Si alloys appears to meet these requirements and the present study is involved with developing an understanding of the mechanisms behind this stability.

While the phase is stable at the highest expected service temperatures, there is a transformation temperature well below the melting point of the alloy. No transformation of the a phase was observed after 6 months at 425°C but 100h at 540°C resulted in significant formation of Al13Fe4 throughout the material.

The low coarsening rate reported for the α phase in these alloys was corroborated by measurements at 425°C, but it is higher than predicted by theory because of enhanced diffusion through the substructure. This is supported by the activation energy for coarsening, determined to be 195±15 kJmol-1, which is significantly less than would be expected for volume diffusion or interface controlled coarsening.

The relatively poor performance of other Al-Fe base alloys is attributed to their mixed, non spherical phases which are not resistant to transformation. Measurement of coarsening in these alloys is difficult and is dominated by large particles at grain boundaries.

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

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Eckvall JC, Rainen RA, Chellman DJ : 1990, J. Aircraft, 27, 836.

    Article  Google Scholar 

  2. Hyatt MV, Axter SE : 1991, RASELM ’91 (edited by K Hirano), 273–280.

    Google Scholar 

  3. Makin PL, Ralph B : 1984, J. Mater. Sci., 19, 3835.

    Article  CAS  Google Scholar 

  4. Boyd JD, Nicholson RB : 1971, Acta Metall, 19, 1379.

    Article  CAS  Google Scholar 

  5. Angers LM, Konitzer DG, Murray JL, Trucker WG : 1988, in Dispersion Strengthened Al-Alloys (edited by YW Kim, WM Griffith), 355–369. TMS.

    Google Scholar 

  6. Couper MJ, Singer RE : 1986, in High Strength PM Al-Alloys II (edited by GJ Hildeman, MJ Koczak), 199–211.

    Google Scholar 

  7. Skinner DJ : 1988, in Dispersion Strengthened Al-alloys (edited by YW Kim, WM Griffith), 181–197. TMS.

    Google Scholar 

  8. Jones H : 1969/70, Mater. Sci. and Eng., 5, 1.

    Article  CAS  Google Scholar 

  9. Das SK, Okazaki K, Adam CM : 1984, in High Temperature Alloys-Theory and Design, (edited by JO Steigler). Met. Soc. AIME.

    Google Scholar 

  10. Lavemia EJ, Ayers JD, Srivatsan TS : 1992, Int. Mater. Rev., 37, 1.

    Article  Google Scholar 

  11. Skinner DJ, Bye RL, Raybould D, Brown AM, Zedalis MS : 1986, in Enhanced Properties

    Google Scholar 

  12. in Structural Metals by RS, 291-295. ASM.

    Google Scholar 

  13. Zedalis MS, Peltier JM, Gilman PS : 1989, in Light Weight Alloys for Aerospace Applications (edited by EW Lee, EH Chia, NJ Kim), 323–334. TMS.

    Google Scholar 

  14. Gilman PS : 1990, Metals and Materials, Aug, 504.

    Google Scholar 

  15. Gilman PS, Das SK, Raybould D, Zedalis MS, Peltier JM : 1988, in 2nd Int SAMPE Met. and Met. Processing Conf., 91–101.

    Google Scholar 

  16. Gilman PS, Zedalis MS, Peltier JM, Das SK : 1989, in Aircraft Design Systems and Operation, 1–7. AIAA.

    Google Scholar 

  17. Gilman PS, Das SK : 1988, in PM Aerospace Materials. Metal Powder Report Publ. Services.

    Google Scholar 

  18. Jha SC, Sanders TH : 1986, in High strength PM Al-alloys II (edited by GJ Hildeman, MJ Koczak).

    Google Scholar 

  19. Das SK, Bye RL, Gilman PS : 1991, Miter. Sci. and Eng., 134, 1103.

    Article  Google Scholar 

  20. Mitra S : 1992, ScriptaMetall., 27, 521.

    Google Scholar 

  21. Rodriguez MA, Skinner DJ : 1990, J. Mater. Sci. Lett., 9, 1292.

    Article  CAS  Google Scholar 

  22. Hodgson P, Parker BA : 1988, J. Mater. Sci., 16, 1343.

    Article  Google Scholar 

  23. Liu P, Dunlop GL, Arnberg L : 1988, Mater. Sci. Eng., 98, 437.

    Article  CAS  Google Scholar 

  24. Skinner DJ, Bye RL, Raybould D, Brown AM : 1986, Scripta Metall, 20, 867. 24

    Article  CAS  Google Scholar 

  25. Bäckerud L : 1968, Jerkont. Ann., 152, 109.

    Google Scholar 

  26. Das SK, Davis LA : 1988, Mater. Sci. and Eng., 98, 1–12

    Article  CAS  Google Scholar 

  27. Lee JC, Lee S, Lee DY, Kim NJ : 1991, Met. Trans A, 22, 853.

    Article  Google Scholar 

  28. Frank RE, Hawk JA : 1989, Scripta Metall. 23, 113.

    Article  Google Scholar 

  29. Lifshitz LM, Slyozov W : 1961, J. Phys. Chem. Solids, JL9, 35.

    Article  Google Scholar 

  30. Wagner C : 1961, Z. Electrochem., 65, 581.

    CAS  Google Scholar 

  31. Fine ME, Weertman JR : 1984, Annual Technical Report, NW University.

    Google Scholar 

  32. Rylands LM, Wilkes DMJ, Rainforth WM, Jones H : 1994, J. Mater. Sci., 29, 1895–1900.

    Article  CAS  Google Scholar 

  33. Ardell AJ : 1988, in Phase Transformations ’87 (edited by GW Lorimer), 485–494. Institute of Metals.

    Google Scholar 

  34. Brailsford AD, Winblatt P : 1979, Acta Metall., 27, 179.

    Article  Google Scholar 

  35. Martin JW, Doherty RD : 1976, Stability of Microstructure in Metallic Systems, Ch.4. Cambridge University Press.

    Google Scholar 

  36. Beke DL, Kedves FJ : 1985, Crystal Res. Technol, 20, 73.

    Article  CAS  Google Scholar 

  37. Alexander WB, Slifkin LM : 1970, Phys. Rev. B, 1, 3274.

    Article  Google Scholar 

  38. Lendvai J : 1987, in Age Hardenable Al Alloys (edited by I Kovacs, J Lendvai, 13/14, 101–120. Mater. Sci. Forum.

    Article  Google Scholar 

  39. Pontikakos I, Jones H : 1982, Met. Sci., 16, 27.

    Article  CAS  Google Scholar 

  40. Gjostein NA : 1973, in Diffusion, Ch.9. ASM.

    Google Scholar 

  41. Jain SC, Hughes AE : 1978, J. Mater. Sci.,13, 1611–1631.

    Article  CAS  Google Scholar 

  42. Lee DY, Zupon DE : 1988, in Dispersion Strengthened Al-Alloys (edited by YW Kim, WM Griffith), 265–281. TMS.

    Google Scholar 

  43. Cotton JD, Kaufman MJ : 1991, Met. Trans. A, 22, 927.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Engineering Materials, University of Sheffield, Mappin Street, Sheffield, S1 4DU, UK

    D. M. J. Wilkes & H. Jones

Authors
  1. D. M. J. Wilkes
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. Jones
    View author publications

    You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

  1. Materials and Aeroballistic Technology Division, Armament Engineering Directorate, U.S. Army Armament Research, Development and Engineering Center (ARDEC), Picatinny Arsenal, New Jersey, USA

    Monde A. Otooni

Rights and permissions

Reprints and permissions

Copyright information

© 1995 Springer Science+Business Media Dordrecht

About this chapter

Cite this chapter

Wilkes, D.M.J., Jones, H. (1995). A Perspective on the High Resistance to Coarsening and Durability of Silicide Dispersions in RSPM Al-Fe-V-Si Alloys. In: Otooni, M.A. (eds) Science and Technology of Rapid Solidification and Processing. NATO ASI Series, vol 278. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0223-0_11

Download citation

  • DOI: https://doi.org/10.1007/978-94-011-0223-0_11

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4100-3

  • Online ISBN: 978-94-011-0223-0

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics

Search

Navigation