Effect of stresses and strains on impurity redistribution in a plate under uniaxial loading



A model for the saturation of the surface layer of a thin metal plate with an impurity from the environment under uniaxial mechanical loading is proposed and investigated. The effect of stresses and strains on the diffusion process is analyzed. It is shown that, first, due to the deformation of the crystal lattice of the base, stresses that occur in local volumes lead to a change in the diffusion activation energy; second, stresses influence impurity transfer (this effect is similar to mass transfer by pressure diffusion in liquids). The joint effect of the two types of influences of stresses and strains on the behavior of the system at various geometrical and physical sample parameters is numerically investigated.

Key words

diffusion uniaxial loading plane stress state activation volume 


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© MAIK/Nauka 2010

Authors and Affiliations

  1. 1.Institute of Strength Physics and Materials Science, Siberian DivisionRussian Academy of SciencesTomskRussia

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