Skip to content
1887
  1. Home
  2. A-Z Publications
  3. Platinum Metals Review
  4. Volume 44, Issue 4
  5. Article
Volume 44, Issue 4
  • ISSN: 0032-1400
file format pdf download PDF

Abstract

Not long ago structural intermetallics were metallurgical curiosities rather than the focus of a serious campaign to topple the supremacy of nickel-based superalloys. Indeed, a handful of intermetallic compounds, notably the titanium and nickel aluminides, have succeeded in making it to the point of operational testing; but, if anything, they have highlighted the challenges facing a new generation of ultra-high temperature materials. Two constraints in particular have directed developments. First, at the core of the development of intermetallics, is the need to address the dual requirements of low-temperature toughness and high-temperature strength central to structural applications. Second, the operating conditions of interest (temperatures above 1150°C) call for a marked improvement in the environmental resistance of the materials. In these respects, systems based on platinum group metals deserve attention. The potential benefits resulting from using composite microstructures based on platinum, iridium and ruthenium are highlighted here, using collaborative studies being undertaken by Mintek and a number of alloy development centres.

© Johnson Matthey
Loading

Article metrics loading...

/content/journals/10.1595/003214000X444158166
2000-01-01
2024-11-22
Loading full text...

Full text loading...

/deliver/fulltext/pmr/44/4/pmr0044-0158.html?itemId=/content/journals/10.1595/003214000X444158166&mimeType=html&fmt=ahah

References

  1. R. L. Fleischer, “Intermetallic Compounds – Principles and Practice”, eds. J. H. Westbrook, John Wiley and Sons, Chichester, 1995 [Google Scholar]
  2. Y. Yamabe-Mitarai, Y. Ro, T. Maruko, T. Yokokawa, H. Harada, M. V. Nathal, R. Darolia, C. T. Liu, P. L. Martin, D. B. Miracle, R. Wagner, M. Yamaguchi, Platinum Group Metals-Base Refractory Superalloys for Ultra-High Temperature Use’, Structural Intermetallics 1997, (Proc. 2nd Int. Symp. on Structural Intermetallics, Seven Springs, Champion, U.S-A., eds. Minerals, Metals & Materials Soc., 21st-26th Sept., 1997, pp. 805–814) [Google Scholar]
  3. I. M. Wolff, G. Sauthoff, Metall. Mater. Trans. A, 1996, 27A, 1395 [Google Scholar]
  4. I. M. Wolff, G. Sauthoff, Metall. Mater. Trans. A, 1996, 27A, 2642 [Google Scholar]
  5. P. J. Hill, L. A. Cornish, M. J. Witcomb, J. Alloys Compd., 1999, 291, 30 [Google Scholar]
  6. I. M. Wolff, R. L. Fleischer, Precious-Metal Intermetallic Compounds’, in “Intermetallic Compounds – Principles and Practice”, Vol. 3, eds. J. H. Westbrook, John Wiley and Sons, Chichester, in press [Google Scholar]
  7. X. H. Yu, Y. Yamabe-Mitarai, Y. Ro, H. Harada, Metall. Mater. Trans. A, 2000, 31A, 173 [Google Scholar]
  8. X. H. Yu, Y. Yamabe-Mitarai, Y. Ro, H. Harada, Investigation on Microstructure and Fracture of Quaternary Ir-Based Alloys’, “Key Engineering Materials”, Vols. 171–174, 2000, pp. 677–684 [Google Scholar]
  9. G. B. Fairbank, C. L. Humphreys, A. Kelly, C. N. Jones, Conf. Proc. Intermetallics for the Third Millennium, ASM, Cincinnati, 1st-4th Nov., 1999 [Google Scholar]
  10. G. B. Fairbank, C. L. Humphreys, A. Kelly, C. N. Jones, New Platinum Alloys for Ultra-High Temperature Applications’, presented at the 5th Charles Parsons Turbine Conf., Cambridge, U.K., 3rd-7th July, 2000 [Google Scholar]
  11. P. J. Hill, T. Biggs, P. Ellis, S. Taylor, I. M. Wolff, An Assessment of Ternary Precipitation-Strengthened Platinum Alloys for Ultra-High Temperature Applications’, Mater. Sci. Eng., in press [Google Scholar]
  12. “Coatings for High-Temperature Structural Materials”, National Research Council, National Academy Press, Washington, D.C., 1996 [Google Scholar]
  13. E. J. Felten, F. S. Pettk, Oxid Met., 1976, 10, (3), 189 [Google Scholar]
  14. P. L. Hill, P. Ellis, P. L. A. Cornish, M. J. Witcomb, I. M. Wolff, The Oxidation Behaviour of Pt-Al-X Alloys at Temperatures between 1200 and 1350°C’, presented at ‘High-Temperature Corrosion and Protection 2000’, Japan, 17th-22nd Sept, 2000 [Google Scholar]
  15. J. H. Westbrook, Z. Kristallogr., 1958, 110, 21 [Google Scholar]
  16. D.-M. Wee, O. Noguchi, Y. Oya, T. Suzuki, Trans. JIM, 1980, 21, 237 [Google Scholar]
  17. Y. Yamabe-Mitarai, M.-H. Hong, Y. Ro, H. Harada, Philos. Mag. Lett., 1999, 79, (9), 673 [Google Scholar]
  18. F. R. N. Nabarro, Mater. Sci. Eng., 1994, A184, 167 [Google Scholar]
  19. P. J. Hill, N. Adams, T. Biggs, P. Ellis, S. Taylor, I. M. Wolff, Platinum Alloys Based on Pt-Pt3Al for Ultra-High Temperature Use’, presented at the 5th Int. Conf. Structural and Functional Intermetallics, Vancouver, Canada, 16th-20th July, 2000 [Google Scholar]
  20. P. J. Hill, Y. Yamabe-Mitarai, I. M. Wolff, High-Temperature Compression Strengths of Precipitation-Strengthened Ternary Pt-Al-X Alloys’, Scr. Mater., in press [Google Scholar]
  21. S. D. Dahlgren, Trans. Metall. Soc. AIME, 1967, 239, 1867 [Google Scholar]
  22. A. J. Bradley, J. Iron and Steel Inst., 1951, 168, 233 [Google Scholar]
  23. H. A. Calderon, M. E. Fine, J. R. Weertman, Metall. Trans. A, 1988, 19A, 1135 [Google Scholar]
  24. R. Taillard, A. Pineau, B. J. Thomas, Mater. Sci. Eng., 1982, 54, 209 [Google Scholar]
  25. S. M. Zhu, S. C. Tjong, J. K. L. Lai, Acta Mater., 1998, 46, (9), 2969 [Google Scholar]
  26. I. M. Wolff, L. E. Iorio, T. Rumpf, P. V. T. Scheers, H. Potgieter, Mater. Sci. Eng. A, 1998, 241, (1–2), 264 [Google Scholar]
  27. K. P. Ngwenya, I. M. Wolff, Precipitation Strengthening in Ferritic Fe-Cr-Al-Ru Alloys’, Proc. Electron Microsc. Soc. S. Afr., 1999, 29, p. 19 [Google Scholar]
  28. K. P. Ngwenya, I. M. Wolff, Precipitation Strengthening and Age-Hardening in Ferritic Fe-Cr-Al-Ru Alloys’, Scr. Mater., in press [Google Scholar]
  29. M. R. Jackson, U. S. Patent 4,983,356; 1991 [Google Scholar]
  30. R. L. Fleischer, Platinum Metals Rev., 1992, 36, (3), 138 [Google Scholar]
  31. R. L. Fleischer, R. D. Field, C. L. Briant, Metall. Trans. A, 1991, 22A, 403 [Google Scholar]
  32. I. M. Wolff, JOM, 1997, 34 [Google Scholar]
  33. I. M. Wolff, L. A. Cornish, G. Sauthoff, H. De V. Steyn, R. Coetzee, Structure-Property-Application Relationships in Ruthenium Aluminide RuAl’, op. cit., (Ref. 2), pp. 815–823 [Google Scholar]
  34. I. M. Wolff, G. Sauthoff, Acta Mater., 1997, 45, (7), 2949 [Google Scholar]
  35. I. M. Wolff, Metall. Mater. Trans. A, 1996, 27A, 3688 [Google Scholar]
/content/journals/10.1595/003214000X444158166
Loading
Platinum Metals-Based Intermetallics for High-Temperature Service
Platinum Metals Review 44, 158 (2000); https://doi.org/10.1595/003214000X444158166
/content/journals/10.1595/003214000X444158166
/content/journals/10.1595/003214000X444158166
Loading

Data & Media loading...

  • Article Type: Research Article

Most Cited Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error
Please enter a valid_number test