Abstract
The effect of the concentration of a rare-earth component on the parameters of the nanocrystalline structure formed during crystallization of an amorphous phase in the Al88Ni6Y6 and Al88Ni10Y2 alloys is studied using X-ray diffraction and transmission electron microscopy. It is shown that, as the yttrium concentration increases, the nanocrystal size increases and the content of the nanocrystalline component of the structure decreases. The precipitation of nanocrystals is accompanied by separation of the amorphous matrix into regions with different radii of the first coordination spheres due to the enrichment or depletion with the rare-earth element. The parameters of the nanocrystalline structure support the assumption of the heterogeneous nucleation of the nanocrystals.
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Original Russian Text © G.E. Abrosimova, A.S. Aronin, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 9, pp. 1665–1671.
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Abrosimova, G.E., Aronin, A.S. Effect of the concentration of a rare-earth component on the parameters of the nanocrystalline structure in aluminum-based alloys. Phys. Solid State 51, 1765–1771 (2009). https://doi.org/10.1134/S1063783409090017
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DOI: https://doi.org/10.1134/S1063783409090017