Abstract
By an investigation of the effect of neutron irradiation on the internal friction of zinc polycrystals and monocrystals, we determined the value of the critical stress amplitude σcr before and after irradiation.
It was shown that the value of σcr, which may be related to the beginning of the motion of dislocations, increases as a result of irradiation. The increase of σcr in irradiated zinc is explained by the fact that the dislocations are held fixed as a result of interaction with point defects.
In addition, we studied the effects of the orientation of the basal plane (0001) with respect to the longitudinal axis of the zinc monocrystal specimen on internal friction and on σcr. The results of the investigations of the effect of orientation on internal friction and on σcr are compared with well-known representations of slippage obtained from static studies of monocrystals in tension along one axis.
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Literature cited
N. F. Pravdyuk et al., Proceedings of the Second International Conference on the Peaceful Uses of Atomic Energy (Geneva, 1958). Report of Soviet Scientists, Vol. 3, Moscow, Atomizdat, 1959, p. 610.
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The authors express their gratitude to S. T. Konobeevskii for his comments on the results of the work.
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Pravdyuk, N.F., Pokrovskii, Y.I. & Vikhrov, V.I. The effect of neutron irradiation on the internal friction of zinc monocrystals and polycrystals. The Soviet Journal of Atomic Energy 10, 334–339 (1962). https://doi.org/10.1007/BF01479932
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DOI: https://doi.org/10.1007/BF01479932