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Evolution of Distribution of Dislocations in Ni3Ge Single Crystals During Deformation

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Abstract

The evolution of the distribution of dislocations in Ni3Ge single crystals subjected to deformation in uniaxial compression is studied. The dislocation ensemble in the material under review is found to be of a chaotic homogeneous type. Contact interactions between dislocations prevail, and a linear relation of the spacing between dislocations to the length of dislocation segments is observed for stoppers of an arbitrary type. An equation is derived for the probability density function of the fraction of mobile dislocation segments. The solution to the equation is the normal distribution law. This solution can be extended to parameters that are functions of the dislocation density or spacing between dislocations. The experimental histograms of the spacing between dislocations and of that between arbitrary stoppers with a high significance level obey the lognormal law for all degrees of reduction studied.

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  1. Tomsk State University of Architecture and Building, Russia

    Yu. A. Abzaev

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  1. Yu. A. Abzaev
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Abzaev, Y.A. Evolution of Distribution of Dislocations in Ni3Ge Single Crystals During Deformation. Russian Physics Journal 46, 504–509 (2003). https://doi.org/10.1023/A:1026282209133

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