Abstract
The change in the structure and composition of deformed regions hidden beneath the surface of samples are studied experimentally upon their identification by the method of successive processes of polishing and sputtering. Two present-day steel coins coated with different binary alloys, a 1-ruble coin (coated with the alloy Ni1%Fe) and a 50-kopeck coin (coated with the tompak alloy Cu10%Zn), and also a 5-kopeck coin minted in 1990 consisting of brass L60 are used as the samples. It is found that a change in the surface structure (different for the studied coins) and an increase in the light-component concentration take place in the region of increased deformation by pressing due to its diffusion to the side of greater deformation. The obtained results can be used for improving the means of determining hidden deformed regions using sputtering and stage-like analysis of the surface composition.
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Original Russian Text © K.F. Minnebaev, E.I. Rau, A.A. Khaidarov, V.E. Yurasova, 2014, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, 2014, No. 2, pp. 86–92.
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Minnebaev, K.F., Rau, E.I., Khaidarov, A.A. et al. Changes in the composition and surface structure of alloys in regions with varying deformation. J. Surf. Investig. 8, 175–181 (2014). https://doi.org/10.1134/S1027451014010327
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DOI: https://doi.org/10.1134/S1027451014010327