Role of shear band in texture control of Al-Mg alloys

Abstract

Shear bands formed in Al-Mg alloys during cold rolling are nucleated on grain boundaries. Their mechanism of formation is different from that already proposed in the case of single crystals of the same alloy. Since recrystallized grains of non-cube orientations are nucleated on these shear bands during annealing, the development of cube recrystallization texture can be strongly suppressed by enhancing shear banding during cold rolling. Control of shear band thus provides a new fundamental technological tool to improve drawability of Al alloy sheets. In a microscopic scale, deformation in grain boundary regions also plays here a very important role, as in the case of the formation of {111}uvw recrystallization textures in low carbon steel sheets.

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Correspondence to Makoto Koizumi or Hirosuke Inagaki.

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Koizumi, M., Inagaki, H. Role of shear band in texture control of Al-Mg alloys. Metals and Materials 5, 511 (1999). https://doi.org/10.1007/BF03026297

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Key words

  • rolling texture
  • shear band
  • grain boundary
  • slip rotation