Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-22T17:06:52.611Z Has data issue: false hasContentIssue false

Periodic {001} Walls of Defects in Proton-Irradiated Cu and Ni

Published online by Cambridge University Press:  26 February 2011

P. Ehrhart
Affiliation:
Kernforschungsanlage Jülich, IFF, D-5170 Jülich
W. Jäger
Affiliation:
Kernforschungsanlage Jülich, IFF, D-5170 Jülich
W. Schilling
Affiliation:
Kernforschungsanlage Jülich, IFF, D-5170 Jülich
F. Dworschak
Affiliation:
Kernforschungsanlage Jülich, IFF, D-5170 Jülich
Afaf A. Gadalla
Affiliation:
Assiut University, Assiut, Egypt
N. Tsukuda
Affiliation:
Kyushu University, Fukuoka, Japan
Get access

Abstract

The evolution of the defect structure in 3 MeV-proton irradiated Cu and Ni has been investigated by transmission electron microscopy and by differential dilatometry. The proton irradiations were performed at T≦100°C up to irradiation doses of 2 dpa. An efficient loss of selfinterstitial atoms at dislocations and a consequently high average concentration of vacancies in clusters is observed starting from rather low fluences. In addition an ordering of the defects in the form of periodic {001} walls with a typical periodicity length of ≈ 60 nm is observed for all equivalent {001} planes. The walls consist of high local concentrations of dislocations, dislocation loops and stacking-fault tetrahedra. The observed formation of periodic arraysof defect walls is considered as an example for a possibly general microstructural phenomenon in metals under irradiation.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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 Proc. Int. Conf. on Properties of Atomic Defects in Metals, Argonne, USA, Eds. Peterson, N.L. and Siegel, R.W.. North-Holland Publ. Co. Amsterdam 1978 published in..Nucl. Mat. 69/70Google Scholar
2 Bullough, R. and Wood, M.H. in “Physics of lRadation Effects in Crystals”, Eds. Johnson, R.A. and Orlov, A.N., Elsevier Science Publishers B.V. 1986, 189.Google Scholar
3 Hulett, L.D., Baldwin, T.O., Crump, J.C., Young, F.W.: J. Appl. Phys. 1968, 39, 3945 Google Scholar
4 Stiegler, J.O. and Farrell, K., Scripta Met. 1974, 8, 651.Google Scholar
5 Westmoreland, J.E., Sprague, J.A., Smidt, F.A., Malimberg, P.R.: Rad. Eff. 1975, 26, 1.CrossRefGoogle Scholar
6 Regnier, P. and Glowinski, L.D.: J. Nucl. Mat. 1975, 57, 243.Google Scholar
7 Kulcinski, G.L. and Brimhall, J.L., in “Effects of RarTation on Substructure and Mechanical Properties in Metals and Alloys”, ASTM STP 529, American Society for Testing and Materials 1973, 258.Google Scholar
8 Ehrhart, P., Gaber, A., Gadalla, A.A., Jager, W., Tsukuda, N.: J. Nucl. Mat. 1985, 137, 73 and 1986 138, 127; Nucl. Inst. Meth. 1986, (in press) and Acta Met. in (press).Google Scholar
9 Vaessen, P., Ehrhart, P., Hofer, H., Jäger, W., Keldenich, D. and Schilling, W.: in Proc. Int. Conf. on Vac. and Int. in Metals and Alloys Berlin 1986 to be published in Mat. Sci. Forum.Google Scholar
10 Simmons, R.O. and Balluffi, R.W.: Phys. Rev. 1962, 125, 862.Google Scholar
11 Wilkens, M.: Kristall und Tech. 1976 11, 1159 CrossRefGoogle Scholar
12 McWahn, D.B.: in Synthetic Modulated Structures (Chang, L.L. and Giessen, B.C. eds.) Acad. Press 1985 Google Scholar
13 Jäger, W., Ehrhart, P., Schilling, W., Dworschak, F., Gadalla, A.A. and Tsukuda, N.: see 9.Google Scholar
14 Larson, B.C. in “Fundamental Aspects of Radiation Damage in Metals” (Robinson, M.T., Young, F.W. Jr. (eds); US-ERDA-Conf 751006, 1967) p. 820 Google Scholar
15 Martin, G.: J. de Physique 1977, 38, C7, 419 Google Scholar
16 Tomimitsu, H.: Phil. Mag. A 1981, 43, 469.Google Scholar
17 Krishan, K.: Phil. Mag. A 1982, 45, 401.Google Scholar
18 Evans, J.H. see 9Google Scholar
19 Frank, W. and Woo, C. H. see 9Google Scholar
20 Essmann, U. and Mughrabi, H.: Phil. Mag. A 1979, 40, 731 Google Scholar