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Abstract
In situ measurements have been carried out of electrical resistance of submillimetre (100 μm thick) specimens of alloys of the (Pd 1− x Au x ) 3Fe system which have been submitted to ion bombardment by 20 keV Ar + ions at different temperatures (20–450°C). It has been established that ion irradiation brings about a process of atom ordering over the entire depth of initially disordered (quenched from 1000°C) specimens at temperatures substantially lower than thermal disorder-to-order critical temperature. A number of special features has been revealed in the observed action which are difficult to explain in terms of any of the known effects and, in particular, by radiation-enhanced diffusion. The hypothesis is suggested that the observed effect could be connected with atom regrouping at the solitary shock wave front induced by ion bombardment as a result of evolution of atomic collision cascades.
Published Version
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