|Title:||Strengthening mechanisms in a Zr-modified 5083 alloy deformed to high strains|
equal channel angular processing
|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)|
|Malofeev_Strengthening_15.pdf||1.27 MB||Adobe PDF||View/Open|
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