Nickel foils which were damaged by the irradiation of high-energy electrons at room temperature in a high voltage electron microscope (HVEM) were deformed in-situ while under observation and the behaviour of dislocations was studied. The behaviour of dislocations in the damaged crystal is different from that in the undamaged one. In the damaged crystals dislocation channeling is observed.
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Saka et al. (1975) studied this question.
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