There is really a hot debate between researchers within the recrystallization field on whether CDRX or GDRX should be responsible for the grain modification of aluminium , the center issue is whether the HAGBs experiential after big deformation are altered from LAGBs, microshear/ deformation bands
, or original HAGBs.
 confirmed that deformation bands
can be observed in pancaked austenite deformed in a non-recrystallization region, which bridge the grains by roughly parallel lines.
After the first pass, the grains are elongated along the shear deformation bands
, but they become more refined and equiaxed, in addition to being more uniform in size, after six and eight passes.
McNelley, "Effect of strain path on evolution of deformation bands
during ECAP of pure aluminum," Materials Science and Engineering A, vol.
It is known that in case of dynamic unbalanced processes the relaxation processes of grain refinement are intensified in the material, as well as their rotational shear or the creation of dissipative structures in the form of localized deformation bands
In the neat, a-spherulitic iPP, plastic deformation was localized in narrow deformation bands
. Both inter- and intra-spherulitic shear bands were observed.
Loadings spectrum of the first principal component (PC1) includes spectral bands of kaolinite only: stretching bands of inner-surface hydroxyl groups (3695 [cm.sup.-1], 3668 [cm.sup.-1], 3652 [cm.sup.-1] and 3620 [cm.sup.-1]), Si-O stretching band (1100 [cm.sup.-1]), in-plane Si-O stretching bands (1030 [cm.sup.-1] and 1010 [cm.sup.-1]), deformation band
of inner-surface hydroxyl groups (915 [cm.sup.-1]), Si-O stretching bands (795 [cm.sup.-1], 755 [cm.sup.-1] and 695 [cm.sup.-1]) and deformation bands
Al-O-Si, Si-O-Si and Si-O, respectively (540 [cm.sup.-1], 470 [cm.sup.-1] and 430 [cm.sup.-1]).
in porous rocks are low-displacement deformed zones that increase cohesion and reduce porosity and permeability, and are commonly formed in a Riedel pattern (e.g.
The report presents the mathematical basis of the multifractal approach, summarizes studies on the effect of the material strain hardening and experimental noise which show that multifractal behavior exists in the unexplored range close to the low strain rate boundary of the PLC instability (where deformation bands
were believed to be uncorrelated), and uses these results to examine the overall pattern of the PLC effect at various strain rates.
Closely spaced deformation bands
are also observed.
Different nylons can be distinguished by subtle differences in frequencies and intensities in the Amide III band between 1,260 and 1,280 cm-1, and in the symmetric methylene stretch and the methylene deformation bands