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Effect of Copper and Nickel on the Neutron Irradiation Damage in Iron Alloys

Published online by Cambridge University Press:  16 February 2011

D.T. Hoelzer  and
F. Ebrahimi
D.T. Hoelzer
Affiliation:
Presently at Alfred University, Alfred, NY 14802
F. Ebrahimi
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611
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Abstract

Iron alloys containing copper and nickel were irradiated at 288°C to a fluence of 4.63 × 1019 neutrons/cm2. Neutron irradiation produced defects which were observable by TEM in all of the iron alloys studied. The TEM analysis of the defects showed them to be interstitial dislocation loops with a < 100 > and a/2 < 111 > Burgers vectors. The size, the number density, and the Burgers vector of dislocations were affected by the alloy composition. The addition ofcopper and nickel decreased the dislocation loop size and increased the fraction of a/2 < 111 > loops. No voids or vacancy loops were observed in the irradiated iron alloys. The results are discussed in terms of dislocation loop nucleation and growth.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 373: Symposium Y – Microstructure of Irradiated Materials , 1994 , 57
Copyright
Copyright © Materials Research Society 1995

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References

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