Hostname: page-component-77c89778f8-gq7q9 Total loading time: 0 Render date: 2024-07-18T13:38:42.784Z Has data issue: false hasContentIssue false
  • English
  • Français

The Microchemistry of Grain Boundaries in Ni3Al

Published online by Cambridge University Press:  26 February 2011

D. N. Sieloff ,
S. S. Brenner  and
Hua Ming-Jian
S. S. Brenner
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261
Hua Ming-Jian
Affiliation:
Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15261
Get access

Abstract

Grain boundary regions in B-doped as well as B-free Ni3AI were studied by field-ion microscopy and atom probe microanalysis. In the ductile, recrystallized, Ni-rich alloys the segregation of boron was often accompanied by an enrichment of nickel. Such an enrichment was not observed at boundaries in B-free alloys. Boron was also observed to segregate to the boundaries in a 25.2A1 - IB alloy which was reported to contain boron clusters. Such clusters were not observed, instead a high concentration of boron pairs were found.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 133: Symposium H – High-Temperature Ordered Intermetallic Alloys III , 1988 , 155
Copyright
Copyright © Materials Research Society 1989

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

1. Aoki, K. and Izumi, O., Nippon Kinzoku Gakkaishi, 43, 1190 (1979).Google Scholar
2. Liu, C. T., White, C. L. and Horton, J. A., Acta Metall., 33, 213 (1985).CrossRefGoogle Scholar
3. White, C. L., Padgett, R. A., Liu, C. T. and Yalisove, s. M., Scr. Metall., 18, 1417 (1984).Google Scholar
4. Horton, J. A. and Miller, M. K., Acta. Metall., 35, 133 (1987).CrossRefGoogle Scholar
5. Brenner, S. S., Sieloff, D. D. and Burke, M. G., J. de Physique C2, 215 (1986).Google Scholar
6. Takasugi, T. and Izumi, O., Acta. Metall., 33, 1247 (1985).Google Scholar
7. Schulson, E. M., Weihs, T. P., Baker, I., Frost, H. J. and Horton, J. A., Acta. Metall., 34, 1395 (1986).CrossRefGoogle Scholar
8. Sieloff, D. D., Brenner, S. S. and Burke, M. G., Mat. Res. Soc. Symp. proc., 81, 87 (1987).Google Scholar
9. Foiles, S. M., Mat. Res. Soc. Symp. proc., 51 (1987).Google Scholar
10. Dasgupta, A., Smedskjaer, L. C., Legnini, D. E. and Siegel, R. W., Materials Letters, 3, 457 (1985).CrossRefGoogle Scholar
11. Papazian, J. M., J. Microsc., 94, 63 (1971).Google Scholar
12. Reynolds, W. T. Jr., Brenner, S. S. and Aaronson, H. I., Scripta. Metall. 22, 1343 (1988).Google Scholar
13. Baker, I., Schulson, E. M. and Michael, J. R., Phil. Mag., B57, 379 (1988).Google Scholar
14. MacKenzie, R. A. D. and Sass, S. I., Scripta. Metall., 22, 1807 (1988).Google Scholar