Recovery of copper alloys after neutron irradiation at low temperatures
- 1 January 1973
- journal article
- research article
- Published by Taylor & Francis in Radiation Effects
- Vol. 17 (3-4) , 151-158
- https://doi.org/10.1080/00337577308232611
Abstract
The effects of fast neutron irradiation near 4.2°K on dilute Cu, Cu3Au, α-CuZn, β-CuZn and CuNi alloys were studied by electrical resistivity measurements. For Cu3Au, the recovery stage at ∼ 100°K becomes more distinct with increasing long-range order, and is attributed to migration of interstitials. The ratio of the number of replacements to the number of displacements (C R /C F ) is estimated to be about 50 for neutron irradiation, in contrast to the previously reported value of ∼2 for electron irradiation. For α-CuZn, a large recovery stage at ∼150°K is found and attributed to annihilation of interstitids whose migration produces ordering. For β-CuZn, migration of interstitials also produces ordering. It is also suggested that in β-CuZn, the ratio C R /C F is larger for neutron irradiation than for electron irradiation as in the case of Cu3Au. The results on CuNi alloys are presented without explanation.Keywords
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