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Title: Strengthening mechanisms in a Zr-modified 5083 alloy deformed to high strains
Authors: Malopheyev, S.
Kaibyshev, R.
Keywords: technique
metal science
aluminum alloy
equal channel angular processing
grain refinement
mechanical characterization
Issue Date: 2015
Citation: Malopheyev, S. Strengthening mechanisms in a Zr-modified 5083 alloy deformed to high strains / S. Malopheyev, R. Kaibyshev // Materials science and engineering A . - 2015. - Vol.620.-P. 246-252.
Abstract: The effect of extensive grain refinement through equal-channel angular processing (ECAP) at 300°C on the mechanical properties was examined in a Zr-modified 5083 aluminum alloy. It was shown that any increase in the yield stress (YS) by increasing the number of pressings was attributed to additional contributions from three strengthening mechanisms :(i) grain boundary strengthening related to the size of the crystallites bounded by deformation-induced high-angle boundaries (HAB), (ii) dislocation strengthening related to highly increased dislocation density and(iii)solute strengthening related to promoting dynamic strain aging (DSA) by intense plastic straining
Appears in Collections:Статьи из периодических изданий и сборников (на иностранных языках) = Articles from periodicals and collections (in foreign languages)

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