Hostname: page-component-77f85d65b8-blhq5 Total loading time: 0 Render date: 2026-03-26T12:07:33.741Z Has data issue: false hasContentIssue false
  • English
  • Français

Fracture and Toughness of Intermetallics

Published online by Cambridge University Press:  01 January 1992

Horst Vehoff
Horst Vehoff*
Affiliation:
MPI für Eisenforschung, Max Planck Str. 1, D-4000 Düsseldorf, Germany
Get access

Abstract

The difficulties to obtain valid fracture toughness values in brittle intermetallics are discussed. Different intermetallic alloys with the same specimen size were tested in four point bending to allow the direct comparison of the bnttleness of different alloys. The influence ofgrain size, phase distribution, and temperature on the fracture toughness was measured. The fracture toughness of many intermetallic alloys was found to be extremely rate sensitive. This is discussed in view of dynamic models of the brittle/ductile transition developed recently. NiAl single crystals with <100>-specimen axis snowed the largest toughness at room temperature and compared to other orientations the highest transition temperature. The apparent activation energy for the brittle%ductile transition depends on orientation. Evidence was given that in multiphase alloys the yielding of a second phase initiates interfacial fracture. For polycrystals it was shown that different processes can cause brittle/ductile transitions.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 71
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. High-Temperature Ordered Intermetallic Alloys, I, II, III and IV, Mat. Res. Soc., Pittsburgh (1985, 1987, 1989 and 1991)Google Scholar
2. Ordered Intermetallics - Physical Metallurgy and Mechanical Behaviour, eds. Liu, C.T., Cahn, R.W., Sauthoff, G., Kluwer Academic Publishers, Dordrecht (1992)Google Scholar
3. Munz, D., Bubsey, R.T., Shannon, J.L., J.Am.Cer.Soc 63, 300, (1980)Google Scholar
4. Kleinlein, F.W., Dissertation, Erlangen (1980)Google Scholar
5. Gross, B., J.E. Srawley NASA TN-D, 2603 (1965)Google Scholar
6. ASTM Annual Book of Standards, Part 10, American Society for Testing Materials, Philadelphia, E 399–618 (1981)Google Scholar
7. Inglis, C.E., Trans.Instn Nav. Archit., LV,1, 219 (1913)Google Scholar
8. Suresh, S., Brockenbrough, J.R., Acta, metall. 36, 1455 (1988)Google Scholar
9. Bergmann, G., Vehoff, H.: work in progressGoogle Scholar
10. Specht, P., Brede, M., work in progressGoogle Scholar
11. Schulson, E.M., Baker, I., Ordered Intermetallics - Physical Metallurgy and Mechanical behaviour, NATO ASI Series, Kluwer Academic Publ. Dordrecht, 371 (1992)Google Scholar
12. Takasugi, T., Izumi, O., Acta metall. 33,1247 (1985)Google Scholar
13. Takasugi, T., Izumi, O., Masahashi, N., Acta metall. 33,1259 (1985)Google Scholar
14. Aoki, K., Izumi, O., Trans. J. Japan Inst. of Met. 43, 1190 (1979)Google Scholar
15. George, E.P., Liu, C.T., J. Mater. Res. 5,754 (1990)Google Scholar
16. Ackland, G.J., Vitek, V., MRS, Vol. 133, 105 (1989)Google Scholar
17. Takasugi, T., MRS, Vol. 213, 403 (1919)Google Scholar
18. Yoo, M.H., Fu, C.L., Scripta metall. mater. 25, 2345 (1991)Google Scholar
19. Lin, I.H., Thomson, R., Acta metall. 34,187 (1986)Google Scholar
20. Rice, J.R., Thomson, R., Phil. Mag. 29, 73 (1974)Google Scholar
21. Anderson, P.M., Rice, J.R., Scripta metall., 20,1467 (1986)Google Scholar
22. Schneibel, J.H., Hazzledine, P.M., MRS Vol. 213, 323 (1991)Google Scholar
23. Ohr, S.M., Chang, S.-J., J. Appl. Phys. 53, 5645 (1982)Google Scholar
24. Thomson, R. Script, metall. 20, 1473 (1986)Google Scholar
25. Marsh, P. G., Zielinski, W., Huang, H., Gerberich, W.W., Acta metall. mater. 40, 2883 (1992)Google Scholar
26. Gerberich, W.W., Huang, H., Marsh, P.G., NASA 1992, Conference on Advanced Earth-to-Orbit Propulsion Technology, Marshall Space Flight Center, Alabama, May 1992 Google Scholar
27. Reuss, S., Vehoff, H., Proceedings of the 2nd European Conference on Advanced Materials and Processes, EUROMAT 2, The Institute of Materials, 313, (1992)Google Scholar
28. Wunderlich, W., Kremser, T., Frommeyer, G., Z. Metallkde. 11, 802 (1990)Google Scholar
29. Hirsch, P.B., Roberts, S.G., Samuels, J., Proc. R. Soc. Lond. A 421,25 (1989)Google Scholar
30. Brede, M., Haasen, P., ICSMA 9, eds. Brandon, D.G., Chaim, R., Rosen, A., Haifa, Freund Publishing House, London, 813 (1991)Google Scholar
31. Brede, M., Acta metall. mater. 41, 211 (1993)Google Scholar
32. Maeda, K., Scripta metall. mater. 27, 805 (1992)Google Scholar
33. Yamaguchi, M., Umakoshi, Y., Script. metall. 9, 637 (1975)Google Scholar
34. Pascoe, R.T., Newey, C.W.A., Metal Sci. J. 2, 138 (1968)Google Scholar
35. Ochmann, P., Vehoff, H., work in progressGoogle Scholar
36. Jokl, M.L., Vitek, V., McMahon, C.J., Burgers, P., Acta metall. 37, 87 (1989)Google Scholar
37. Chang, K.-M, Darolia, R., Lipsitt, H.A., MRS Vol. 213, 597 (1991)Google Scholar
38. Yoo, M.H., Fu, C.L., Scripta metall. mater. 25, 2345 (1991)Google Scholar
39. Reuss, S., Dissertation, Aachen (1991)Google Scholar
40. Vehoff, H., Neumann, P., Acta metall. 28, 265 (1980)Google Scholar
41. Rice, J.R., Transactions ASME, 55, 98 (1988)Google Scholar
42. Noebe, R.D., Bowman, R.R., Cullers, C.L., Raj, S.V., MRS, Vol. 213, 589 (1991)Google Scholar
43. Miracle, D.B., Acta metall. mater. 39,1457 (1991)Google Scholar
44. Wunderlich, W., Machon, L., Sauthoff, G., Z. Metallkde. 83, 9 (1992)Google Scholar
45. Vehoff, H., Ordered Intermetallics - Physical Metallurgy and Mechanical Behaviour, NATO ASI Series, Kluwer Academic Publishers, Dordrecht, 299 (1992)Google Scholar
46. Liu, Y., Takasugi, T., Izumi, O., Yamada, T., Acta metall. 37, 507 (1989)Google Scholar
47. Jung, I., Sauthoff, G., Z. Metallkde. 80, 490 (1989)Google Scholar
48. Liu, C.T., Ordered Intermetallics - Physical Metallurgy and Mechanical Behaviour, NATO ASI Series, Kluwer Academic Publishers, 321 (1992)Google Scholar