ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The dependence on the grain orientation of the alignment of planar dislocationboundaries in plastically deformed metals has been investigated by examining grains of Sorientation ({123}〈63-4〉) in cold-rolled polycrystalline aluminum. For the ideal S orientation the{111} slip plane associated with the highest resolved shear stress lies either at +40° or -40° to therolling direction in the longitudinal section, with two S variants corresponding to each case.Boundary traces in S orientation grains in the rolled sample were examined by the combined use ofelectron channeling contrast imaging and electron backscatter diffraction orientation mapping. Ineach case the +/- sense of the observed planar boundary traces matched that of the {111} slip planewith the highest resolved shear stress showing that the alignment of the boundaries ispredominantly controlled by crystallographic rather than macroscopic considerations
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.711.pdf
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