Abstract
A model is proposed of diffusion-induced segregation at a moving grain boundary in a three-component alloy upon severe plastic deformation with allowance for generation and absorption of point defects and their mutual recombination. Redistribution of atoms of alloying elements and formation of near-boundary segregates during severe plastic deformation in stable austenitic alloys of the Fe-12Cr-30Ni type is studied. It has been shown by numerically solving an appropriate set of equations that the motion of a grain boundary leads to the formation of a deformation-induced segregation with an asymmetrical profile of the component concentrations. The boundary is being enriched with nickel and depleted of the other components.
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Original Russian Text © S.A. Starikov, A.R. Kuznetsov, V.V. Sagaradze, V.A. Pechenkin, I.A. Stepanov, 2006, published in Fizika Metallov i Metallovedenie, 2006, Vol. 102, No. 2, pp. 147–151.
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Starikov, S.A., Kuznetsov, A.R., Sagaradze, V.V. et al. The model of deformation-induced segregation near a moving grain boundary in the Fe-Cr-Ni alloy. Phys. Metals Metallogr. 102, 135–139 (2006). https://doi.org/10.1134/S0031918X06080035
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DOI: https://doi.org/10.1134/S0031918X06080035