Recrystallization Texture Formation of a Heavily Cold Rolled Cu-15at%Al Alloy

The effects of net driving force for migration of high angle grain boundaries were emphasized beside many other factors which could influence the process of texture formation during recrystallization annealing of 95% cold rolled pure aluminum sheets. The net driving force consists basically of stored energy. However, it could be reduced by recovery, boundary drag, solute drag and Zener drag in different extents, in which only boundary drag is mis-orientation dependent. It was indicated that both oriented nucleation and oriented growth have obvious influence on recrystallization texture, and how far they influence the texture depends also on the level of net driving force when the grain growth starts during annealing. Oriented growth, which is induced by the differences in boundary drag of differently oriented grains, and the corresponding texture formation, could be observed easily when the recrystallization proceeds under relative higher solute drag and Zener drag in commercial purity aluminum. The oriented nucleation process prevails during recrystallization of sufficiently recovered high purity aluminum with very low solute drag and Zener drag, after which strong cube texture forms. In this case the oriented growth indicates limited effect. Both the oriented growth and oriented nucleation will fail if high purity deformation matrix without clear solute drag and Zener drag has not experienced an obvious recovery before recrystallization grain growth, since extremely high net driving force leads to very small critical nucleus size and multiplicity of growing grains, which results in randomization of recrystallization texture.

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Study on the Micro Mechanism of Recrystallization Texture Formation in Cold-Rolled IF Steel Sheet

Materials Science Forum - Textures of Materials - ICOTOM 14 ◽

10.4028/0-87849-975-x.417 ◽

2005 ◽

pp. 417-422

Author(s):

T. He ◽

Y.D. Liu ◽

Y. Wu ◽

Q.W. Jiang ◽

Gang Wang ◽

...

Keyword(s):

Recrystallization Texture ◽

Steel Sheet ◽

If Steel ◽

Texture Formation ◽

Cold Rolled ◽

If Steel Sheet

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Influence of Cold Rolling Reduction and Cross Rolling on Recrystallization Texture Formation in Electro Deposited Pure Iron with a Sharp and Homogeneous //ND Fiber

Materials Science Forum ◽

10.4028/www.scientific.net/msf.783-786.313 ◽

2014 ◽

Vol 783-786 ◽

pp. 313-318

Author(s):

Naoki Yoshinaga ◽

Dirk Vanderschueren ◽

Leo Kestens ◽

Kohsaku Ushioda ◽

Natsuko Sugiura

Keyword(s):

Cold Rolling ◽

Pure Iron ◽

Recrystallization Texture ◽

Rolling Texture ◽

Rolling Reduction ◽

Rolled Sheet ◽

Texture Formation ◽

Annealing Texture ◽

Cold Rolling Reduction ◽

Cold Rolled

The cold rolling and annealing texture formation has been investigated in electro deposited pure iron which has an extremely sharp and isotropic <111>//ND fiber. Regardless of cold rolling reduction, {111}<112> intensified texture is formed after cold rolling. Similar texture remains after recrystallization in 65% cold rolled material while {111}<110> type texture forms in 80% and 90% cold rolled ones. The recrystallized grains at the stage of 5% recrystallization have {111}<112> orientation in 65% cold rolled sheet, whereas {111}<110> is observed in 80% cold rolled one. From this aspect, it is considered that the nucleation orientation plays an important role in the recrystallization texture formation. In the meanwhile, the growth of the recrystallized nuclei is also supposed to affect the recrystallization texture formation. The nuclei with {111}<112> orientation in lightly cold rolled sheet are easier to consume the deformed matrix than they do in heavily cold rolled sheets because their frequency to encounter a deformed grain with nearly the same orientation is much smaller in lightly cold rolled specimen, which can result in a large mobility for growth. Cross cold rolling makes cold rolling texture rather homogeneous <111>//ND fiber, which gives rise to an almost homogeneous <111>//ND fiber after annealing.

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