Hostname: page-component-76fb5796d-wq484 Total loading time: 0 Render date: 2024-04-29T21:37:44.224Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of boron on the deformation behavior of Ni3Al

Published online by Cambridge University Press:  03 March 2011

J.A. Brusso  and
D.E. Mikkola
J.A. Brusso
Affiliation:
Department of Metallurgical and Materials Engineering, Michigan Technological University, Houghton, Michigan 49931
D.E. Mikkola
Affiliation:
Department of Metallurgical and Materials Engineering, Michigan Technological University, Houghton, Michigan 49931
Get access

Abstract

The effects of boron additions (0 to 4000 wppm B) on the room temperature deformation behavior of Ni-24Al have been examined with both quasi-static deformation and short pulse duration shock loading. Changes in compressive yield strength and hardness with the amount of boron suggest that strengthening effects are more complicated than predicted by usual interstitial solid-solution strengthening considerations. The nature of the dislocations changes from SISF-dissociated superdislocations in the Ni-24Al base alloy to APB-dissociated dislocations with the additions of small amounts of boron. Therefore, the observed variation in strength with boron additions reflects a solid-solution strengthening contribution from the interstitial boron coupled with a “softening” effect arising from the greater mobility of the APB-bounding partials relative to the SISF-bounding partials. It is suggested that this “softening” is a necessary prerequisite for enhanced ductility in Ni3Al. In addition, the grain boundary fracture strength must be increased by boron additions. While this may occur through an increased grain boundary cohesive strength due to boron segregation, it is also expected that the interaction of the dislocations with the grain boundaries will be significantly altered as the nature of the dislocations changes. The lack of a “boron effect” in Ni-25Al, the so-called stoichiometric effect, can be attributed to a diminished “softening”, combined with the rapid solid-solution strengthening observed in this alloy.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 7 , July 1994 , pp. 1742 - 1754
Copyright
Copyright © Materials Research Society 1994

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.)

References

REFERENCES

1Takasugi, E., George, E., Pope, D. P., and Izumi, O., Scripta Metall. 19, 551 (1985).CrossRefGoogle Scholar
2Heredia, F. E. and Pope, D. P., in High Temperature Ordered Intermetallic Alloys III, edited by Liu, C. T., Taub, A. I., Stoloff, N. S., and Koch, C. C. (Mater. Res. Soc. Symp. Proc. 133, Pittsburgh, PA, 1989), p. 287.Google Scholar
3Grala, E. M., in Mechanical Properties of Intermetallic Compounds, edited by Westbrook, J. H. (John Wiley and Sons, New York, 1960), p. 358.Google Scholar
4Seybolt, A. V. and Westbrook, J. H., Acta Metall. 12, 449 (1964).CrossRefGoogle Scholar
5Aoki, K. and Izumi, O., Trans. JIM 19, 203 (1978).CrossRefGoogle Scholar
6George, E. P., Liu, C. T., and Pope, D. P., Scripta Metall. 28, 857 (1993).CrossRefGoogle Scholar
7Aoki, K. and Izumi, O., Nippon Kinzoku Gakkaishi 43, 358, 1190 (1979).Google Scholar
8Liu, C. T., White, C. L., and Horton, J. A., Acta Metall. 33, 213 (1985).CrossRefGoogle Scholar
9Taub, A. I., Huang, S. C., and Chang, K. M., Metall. Trans. A 15A, 399 (1984).CrossRefGoogle Scholar
10High-Temperature Ordered Intermetallic Alloys, edited by Koch, C. C., Liu, C. T., and Stoloff, N. S. (Mater. Res. Soc. Symp. Proc. 39, Pittsburgh, PA, 1985).Google Scholar
11High-Temperature Ordered Intermetallic Alloys II, edited by Stoloff, N. S., Koch, C. C., Liu, C. T., and Izumi, O. (Mater. Res. Soc. Symp. Proc. 81, Pittsburgh, PA, 1987).Google Scholar
12High-Temperature Ordered Intermetallic Alloys III, edited by Liu, C. T., Taub, A. I., Stoloff, N. S., and Koch, C. C. (Mater. Res. Soc. Symp. Proc. 133, Pittsburgh, PA, 1989).Google Scholar
13High-Temperature Ordered Intermetallic Alloys IV, edited by Johnson, L. A., Pope, D. P., and Stiegler, J. O. (Mater. Res. Soc. Symp. Proc. 213, Pittsburgh, PA, 1991).Google Scholar
14Viewpoint Set No. 17, Scripta Metall. 25, 1231 (1991).CrossRefGoogle Scholar
15White, C. L. and Choudhury, A., in High-Temperature Ordered Intermetallic Alloys II, edited by Stoloff, N. S., Koch, C. C., Liu, C. T., and Izumi, O. (Mater. Res. Soc. Symp. Proc. 81, Pittsburgh, PA, 1987), pp. 427–441.Google Scholar
16Schulson, E. M., Weihs, T. P., Baker, I., Frost, H. J., and Horton, J. A., Acta Metall. 34, 1395 (1986).CrossRefGoogle Scholar
17Weihs, T. P., Zinoviev, V., Viens, D. V., and Schulson, E. M., Acta Metall. 35, 1109 (1987).CrossRefGoogle Scholar
18Khadkikar, P. S., Vedula, K., and Shabel, B. S., Metall. Trans. A 18A, 425 (1987).CrossRefGoogle Scholar
19Kerans, R. J., Ph.D. Dissertation, The Ohio State University (1988).Google Scholar
20Yan, W., Jones, I. P., and Smallman, R. E., Scripta Metall. 21, 1511 (1987).CrossRefGoogle Scholar
21Chaki, T. K., Philos. Mag. Lett. 61, 5 (1990).CrossRefGoogle Scholar
22Baker, I., Huang, B., and Schulson, E. M., Acta Metall. 36, 493 (1988).CrossRefGoogle Scholar
23Koch, C. C., Horton, J. A., Liu, C. T., Cavin, O. B., and Scarbrough, J. O., in Rapid Solidification Processing, Principles and Technologies III, edited by Mehrabian, R. (NBS, Washington, DC, 1983), p. 264.Google Scholar
24Mohan Rao, P. V., Satyanarayana Murthy, K., Suryanarayana, S. V., and Nagender Naidu, S. V., J. Mater. Res. 8, 741 (1993).Google Scholar
25Mikkola, D. E., in Proc. 8th Int. Conf. on High Energy Rate Fabrication, edited by Bermen, I. and Schroeder, J. W. (ASME, 1984), p. 41.Google Scholar
26Wright, R. N. and Mikkola, D. E., Metall,Trans. A 16A, 881, 891 (1985).CrossRefGoogle Scholar
27Brusso, J. A., Wright, R. N., and Mikkola, D. E., in Metallurgical Applications of Shock-Wave and High-Strain-Rate Phenomena, edited by Murr, L. E., Staudhammer, K. P., and Meyers, M. A. (Marcel Dekker, New York, 1986), p. 403.Google Scholar
28Crimp, D. M. A., Smith, B. C., and Mikkola, D. E., Mater. Sci. Eng. 96, 27 (1987).CrossRefGoogle Scholar
29Schwartz, L., in Local Atomic Arrangements Studied by X-Ray Diffraction, edited by Cohen, J. B. and Hilliard, J. E. (Metallurgical Society Conf., Gordon and Breach, New York, 1966), Vol. 36, p. 140,Google Scholar
30International Tables for X-Ray Crystallography (The Kynoch Press, Birmingham, England, 1962), Vol. III.Google Scholar
31International Tables for X-Ray Crystallography (The Kynoch Press, Birmingham, England, 1962), Vol. II.Google Scholar
32Mikkola, D. E. and Cohen, J. B., Acta Metall. 14, 105 (1966).CrossRefGoogle Scholar
33Orava, R. N. and Wittman, R. H., in Proc. 5th Int. Conf. on High Energy Rate Fabrication (University of Denver, Denver, CO, 1975), p. 1.Google Scholar
34DeCarli, P. S. and Meyers, M.A., in Shock Waves and High-Strain Rate Phenomena in Metals, edited by Meyers, M. A. and Murr, L. (Plenum Press, New York, 1981), p. 341.CrossRefGoogle Scholar
35Stevens, A. L. and Jones, O. E., J. Appl. Mech. 29, 359 (1972).CrossRefGoogle Scholar
36Borich, D. J., Ph.D. Dissertation, Michigan Technological University, Houghton, MI (1973).Google Scholar
37Warren, B. E., Prog. Met. Phys. 8, 147 (1959).CrossRefGoogle Scholar
38Mikkola, D. E. and Cohen, J. B., in Local Atomic Arrangements Studied by X-Ray Diffraction, edited by Cohen, J.B. and Hilliard, J.E. (Metallurgical Society Conf., Gordon and Breach, New York, 1966), Vol. 36, p. 289.Google Scholar
39Cohen, J. B. and Wagner, C. N. J., J. Appl. Phys. 33, 2073 (1962).CrossRefGoogle Scholar
40Huang, S. C., Taub, A. I., and Chang, K. M., Acta Metall. 32, 1703 (1984).CrossRefGoogle Scholar
41Masahashi, N., Takasugi, T., and Izumi, O., Acta Metall. 36, 1823 (1988).CrossRefGoogle Scholar
42Fleischer, R. L., in The Strengthening of Metals, edited by Peckner, D. (Rhinehold Publishing Corp., New York, 1964), p. 93.Google Scholar
43Mott, N. F. and Nabarro, F. R. N., in Rep. Conf. on the Strength of Solids (Phys. Soc, London, 1948), p. 1.Google Scholar
44Ono, K. and Stern, R., Trans. Metall. Soc. AIME 245, 171 (1969).Google Scholar
45Masahashi, N., Takasugi, T., and Izumi, O., Acta Metall. 36, 1815 (1988).CrossRefGoogle Scholar
46Bohn, H. G., Williams, J. M., Barnett, J. H., and Liu, C. T., in High-Temperature Ordered Intermetallic Alloys, edited by Koch, C. C., Liu, C. T., and Stoloff, N. S. (Mater. Res. Soc. Symp. Proc. 39, Pittsburgh, PA, 1985), p. 127.Google Scholar
47Arnoth, F. W., Clark, J. P., and Mohanty, G. P., J. Appl. Phys. 48, 1771 (1977).CrossRefGoogle Scholar
48Takasugi, T., Hirakawa, S., Izumi, O., Ono, S., and Watanabe, S., Acta Metall. 35, 2015 (1987).CrossRefGoogle Scholar
49Wee, D. M., Pope, D. P., and Vitek, V., Acta Metall. 32, 829 (1984).CrossRefGoogle Scholar
50Yamaguchi, M., Vitek, V., and Pope, D. P., Philos. Mag. A43, 1027 (1981).CrossRefGoogle Scholar
51Yamaguchi, M., Paidar, V., Pope, D. P., and Vitek, V., Philos. Mag. A45, 867 (1982).CrossRefGoogle Scholar
52Takeyama, M. and Liu, C. T., J. Mater. Res. 3, 665 (1988).CrossRefGoogle Scholar
53Qian, X. R. and Chou, Y. T., in Intermetallic Compounds-Structure and Mechanical Properties, edited by Izumi, O. (The Japan Institute of Metals, Nihon Kinzoku Gakkai, 1991), p. 433.Google Scholar
54Qian, X. R. and Chou, Y. T., in Interfacial Structure, Properties, and Design, edited by Yoo, M. H., Clark, W. A. T., and Briant, C. L. (Mater. Res. Soc. Symp. Proc. 122, Pittsburgh, PA, 1988), pp. 311–316.Google Scholar
55Qian, X. R. and Chou, Y. T., in High Temperature Ordered Intermetallic Alloys III, edited by Liu, C. T., Taub, A. I., Stoloff, N. S., and Koch, C. C. (Mater. Res. Soc. Symp. Proc. 133, Pittsburgh, PA, 1989), pp. 529–534.Google Scholar
56Kim, Y. G., Yoon, G. W., and Stoloff, N. S., J. Mater. Sci. Lett. 4, 1407 (1985).CrossRefGoogle Scholar
57Hack, J. E., Srolovitz, D. J., and Chen, S. P., Scripta Metall. 20, 1699 (1986).CrossRefGoogle Scholar
58Mills, M. J., Scripta Metall. 23, 2061 (1989).CrossRefGoogle Scholar
59Mills, M. J., Goods, S. H., Foiles, S. M., and Whetstone, J. R., Scripta Metall. 25, 1283 (1991).CrossRefGoogle Scholar
60Armstrong, R., Codd, I., Douthwaite, R. M., and Petch, N. J., Philos. Mag. 7, 45 (1962).CrossRefGoogle Scholar
61Johnston, T. L., Davies, R. G., and Stoloff, N. S., Philos. Mag. 12, 305 (1965).CrossRefGoogle Scholar
62Liu, Y., Takasugi, T., Izumi, O., and Yamada, T., Acta Metall. 37, 507 (1989).CrossRefGoogle Scholar
63Aoki, K., Mater. Trans. JIM 31, 443 (1990).CrossRefGoogle Scholar
64Briant, C. L. and Taub, A. I., Acta Metall. 36, 2761 (1988).CrossRefGoogle Scholar
65George, E. P. and Liu, C. T., J. Mater. Res. 5, 754 (1990).CrossRefGoogle Scholar