Subgrain Boundaries in ECAP Aluminium

Ivan Saxl; Václav Sklenička; L. Ilucová; Milan Svoboda; Petr Král

doi:10.4028/www.scientific.net/MSF.561-565.813

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HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Subgrain Boundaries in ECAP Aluminium

Subgrain Boundaries in ECAP Aluminium

Abstract:

The effect of ECAP technology on the subgrain structure of coarse-grained pure aluminium is described by means of the orientation imaging microscopy (the selected lower bounds of misorientation (disclination) are = 2o, 5o, 10o and 15o). Standard profile and intercept counts carried out in three suitably oriented and mutually perpendicular section planes and along 18 systematically oriented directions, resp., are used to examine the subgrain and grain structures after the number of passes N = 2, 4, 8, 12 as well the effect of subsequent annealing (several hours at 473K). The local and overall non-homogeneity and anisotropy of boundary structures have also been evaluated.

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Materials Science Forum (Volumes 561-565)

Pages:

813-816

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.813

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Online since:

October 2007

Authors:

Ivan Saxl, Václav Sklenička, L. Ilucová, Milan Svoboda, Petr Král

Keywords:

Anisotropy, Equal-Channel Angular Pressing (ECAP), Grain Size, Grain Structure, Homogeneity, Orientation Image Microscopy (OIM), Subgrain Structure

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References

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