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Numerical calculation of the rate of strain of interstitial solid solutions under irradiation. I. Model of radiation creep

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Abstract

A model of radiation creep of interstitial solid solutions is developed on the basis of the combined motion of dislocations, including their glide and climb past obstacles. The obstacles considered are forest dislocations and pileups of radiation-induced point defects. A computational formula for the rate of strain is derived which describes creep at high stresses, when the gliding dislocations overcome some of the barriers by force, and a method is described for determining the average distance traversed by a dislocation in the glide plane under the influence of the stress until it is stopped by barriers. The results are compared with those of other authors. It is shown that the formula obtained for the rate of strain goes over in particular cases to those given by the previously known SIPA, Gittus-Mansur, and glide-climb models of radiation creep.

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Authors and Affiliations

  1. National Nuclear Center of the Republic of Kazakhstan, 480082, Alma-Ata, Kazakhstan

    Yu. S. Pyatiletov & A. D. Lopuga

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  1. Yu. S. Pyatiletov
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  2. A. D. Lopuga
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Zh. Tekh. Fiz. 69, 64–71 (January 1999)

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Pyatiletov, Y.S., Lopuga, A.D. Numerical calculation of the rate of strain of interstitial solid solutions under irradiation. I. Model of radiation creep. Tech. Phys. 44, 59–65 (1999). https://doi.org/10.1134/1.1259252

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  • DOI: https://doi.org/10.1134/1.1259252

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