Hostname: page-component-76fb5796d-wq484 Total loading time: 0 Render date: 2024-04-26T10:21:50.953Z Has data issue: false hasContentIssue false
  • English
  • Français

Kinetic Monte Carlo Annealing Simulation of Damage Produced by Cascades in Alpha-Iron

Published online by Cambridge University Press:  15 February 2011

F. Gao ,
D. J. Bacon ,
A. V. Barashev  and
H. L. Heinisch
F. Gao
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3GH, UK
D. J. Bacon
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3GH, UK
A. V. Barashev
Affiliation:
Materials Science and Engineering, Department of Engineering, The University of Liverpool, Liverpool L69 3GH, UK
H. L. Heinisch
Affiliation:
Pacific Northwest National Laboratory, Richland, Washington 99352, U.S.A
Get access

Abstract

The mobile defects created in displacement cascades can either interact within the cascade region or undergo long-range diffusion in the crystal. The kinetic Monte Carlo code ALSOME has been used in the present work to carry out annealing simulations of electron irradiation and single cascades with energy in the range of 2 to 40 keV in α-Fe as a function of temperature. Isochronal annealing of electron irradiation shows a temperature-dependence of the recovery stages that is reasonably close to experiment, but Stage I is controlled by the rotation energy of the <110> dumbbell to the <111> crowdion. The annealing of single cascades has demonstrated that nearly 60% of SIAs formed in the primary state of cascade damage escape from the cascade at temperatures above stage I. Most of the escaping SlAs are in clusters, for only 10% of them are mono-interstitials. Although the number of escaping defects increases with increasing cascade energy, the relative fraction is almost constant for the recoil energies considered. The results are compared with those for copper obtained using the same code [1].

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 540: Symposium N / Microstructural Processes in Irradiated Materials , 1998 , 703
Copyright
Copyright © Materials Research Society 1999

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

1. Heinisch, H. L. and Singh, B. N., J. Nucl. Mater. 232 (1996) 206.Google Scholar
2. Bacon, D. J., Calder, A. F. and Gao, F., J. Nucl. Mater. 251 (1997) 1.Google Scholar
3. Rubia, T. Diaz de la and Phythian, W. J., J. Nucl. Mater. 191–194 (1992) 108.Google Scholar
4. Bacon, D. J., Calder, A. F., Gao, F., Kapinos, V. G., and Wooding, S. J., Nucl. Instrum. Meth. B102 (1995) 37.Google Scholar
5. Soneda, N. and Rubia, T. Diaz de la, Phil. Mag. A (1998), in press.Google Scholar
6. Singh, B.N., Golubov, S.I., Trinkaus, H., Serra, A., Osetsky, Yu.N. and Barashev, A.V., J. Nucl Mater. 251 (1997) 107.Google Scholar
7. Gao, F., Osetsky, Y. N. and Bacon, D. J., in preparation for Phil. Mag. A.Google Scholar
8. Gao, F., Bacon, B. J. and Heinisch, H. L., in preparation.Google Scholar
9. Ackland, G. J., Bacon, D. J., Calder, D. J. and Harry, T., Phil. Mag. A75 (1997) 713.Google Scholar
10. Osetsky, Yu. N. and Serra, A., Phil. Mag. A75 (1997) 1097.Google Scholar
11. Tabata, T., Fujita, H., Ashii, H., Igaki, K. and Ishiki, M., Scripta Metall. 15 (1981) 1317.Google Scholar
12. Gao, F. and Bacon, D. J., in preparation.Google Scholar
13. Beeler, J. R., in “Radiation Effects Computer Experiments” (ed. Amelinckx, S., Gevers, R. and Nihoul, J., North-Holland Publishing Company, 1983) p832.Google Scholar
14. Takaki, S., Fuss, J., Kugler, H., Dedek, U. and Schultz, H., Radiation Effects 79 (1983) 87.Google Scholar
15. Gao, F., Osetsky, Y. N. and Bacon, D. J., to be published in J. Nucl. Mater. (1998).Google Scholar
16. Calder, A. F. and Bacon, D. J., J. Nucl. Mater. 207 (1993) 25.Google Scholar
17. Bacon, D. J., Gao, F. and Osetsky, Y. N., to be published in J. Nucl. Mater. (1998).Google Scholar
18. Stoller, R. E., J. Nucl. Mater. 233–237 (1996) 999.Google Scholar
19. Trinkhaus, H., Singh, B. N. and Foreman, A. J. E., J. Nucl. Mater. 206 (1993) 200.Google Scholar
20. Heinisch, H. L. and Singh, B. N., J. Nucl. Mater. 251 (1997) 77.Google Scholar
21. Heinisch, H. L. and Singh, B. N., J. Nucl. Mater., in press.Google Scholar
22. Guinan, M. W. and Kinney, J. H., J. Nucl. Mater. 103&104 (1081) 1319.Google Scholar