Skip to main content Accessibility help

Platinum Group Metals Base Refractory Superalloys

  • Y. Yamabe-Mitarai (a1), Y. Koizumi (a1), H. Murakami (a1), Y. Ro (a1), T. Maruko (a1) and H. Harada (a1)...


Ir- and Rh-base refractory superalloys with an fee and Lb two phase structure similar to Ni-base superalloys, yet with considerably higher melting temperatures have been proposed. Fee and Ll2 two phases were observed in these alloys by transmission electron microscopy and X-ray powder diffractometry. The compression tests of these alloys showed that the strengths of several alloys were about 200 MPa at 1800 °C and these alloys have potential to become ultra-high temperature materials for use in power engineering field.



Hide All
1. Miracle, D. B. and Darolia, R., Intermetallic Compounds Principles and Practice, edited by Westbrook, J. H. and Fleischer, R. L.., (John Wiley & Sons, New York, NY 1995) Vol. 2, p. 53.
2. Brown, W. F. Jr, Mindin, H. and Ho, C. Y., Aerospace Structural Metals Handbook, (CINDAS/Purdue University, West Latayette, IN, 1992), 5, p. 4218, 5502.
3. Yamagata, T., Proc. Fifth. Symp. on High-Performance Materials for Severe Environments, (RINCOF, Tokyo, 1994) 107.
4. Fleischer, R. L., Platinum Metals Rev., 36 (3), 138 (1992).
5. Gyurko, A. M. and Sanchez, J. M., Mat. Sci. Eng., A170, 169 (1993).
6. Yamabe, Y., Koizumi, Y., Murakami, H., Ro, Y., Maruko, T. and Harada, H., Scripta Metall., 35, (2), 211 (1996).
7. Yamabe-Mitarai, Y., Koizumi, Y., Murakami, H., Ro, Y., Maruko, T. and Harada, H., Scripta Metall., in press.
8. Thompson, M. E., Su, C. S. and Voorhees, P. W., Acta Metall. Mater, 42, 6, 2107 (1994).
9. Harada, H., Yamagata, T., Yokokawa, T., Ohno, K. and Yamazaki, M., Proc. Fifth. Intern. Conf. on Creep and Fracture of Engineering Materials and Structures, edited by Wilshire, B. and Evans, R. W., (The Institute of Materials, Swansea, England 1993), p. 255.
10. Dwight, A. E., Beck, P. A.. Trans. Am. Inst. Min. Eng., 215, 976 (1959).
11. Beardmore, P., Davies, R. G. and Johnston, T. L.. TMS-AIME, 245, 1537 (1969).
12. Erickson, G. L., Superalloys 1996, edited by Kissinger, R. D., Deye, D. J., Anton, D. L., Cetel, A. D.. Nathal, M.V., Pollock, T. M., Woodford, D. A., (TMS, Warrendale, PA 1996), p. 35.
13. Ro, Y., Koizumi, Y. and Harada, H., Materials for Advanced Power Engineering, edited by Coutsouradis, D. et al., (Kluwer Academic Publishers, Netherlands, 1994), Part I, p. 883.
14. Harada, H., Yamazaki, M., Koizumi, Y., Sakuma, N., Fukuya, N. and Kamiya, H., Proc. of High Temperature Alloys for Gas Turbines, edited by Brunetaund, R., Coutsouradis, D., Gibbons, T. B., Lindblom, Y., Meadowcroft, D. B. and Stickler, R., D., (REIDEL PUBLISHING COMPANY, Liege, Belgium, 1982) p. 721.
15. Yokokawa, T., Ohno, K., Murakami, H., Kobayashi, T., Yamagata, T., Harada, H.: Advanced in X-ray Analysis, 1996, in press.
16. Sims, C. T., Stoloff, N. S. and Hagel, W. C, Superalloys II, (John Wiley & Sons, New York, NY, 1987) p. 13, 551.
17. Yamabe-Mitarai, Y., Ro, Y., Maruko, T. and Harada, H., unpublished
18. Jaffee, R. I., Maykuth, D. J. and Douglass, R. W., Refractory Metals and Alloys, 11, 383(1961).
19. Dickson, D. T., Wimber, R. T. and Stetson, A. R., Technical Report AFML-TR-660317 (1966).


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed