Twinning role in the radiation damage and plastic deformation in irradiated crystals

I.M.Neklyudov


"Kharkiv Physical Technical Institute", National Academy of Sciences of Ukraine, 1 Academchna St., 61103 Kharkiv, Ukraine

Received April 28, 1999

The test results aimed at elucidation of the twinned interlayer boundary effect on the radiation damage of crystals and the twinning mechanism role in the plastic deformation of irradiated metals have been presented. The irradiation results in a considerable increase of the critical twinning stress, similar to the case of slipping. The twinning becomes the main mechanism of the plastic deformation, in particular, in metals having bcc and hcp lattices; this is due to the structure heterogeneity increase caused by irradiation.

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