Development of local shear bands and orientation gradients in fcc polycrystals

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A finite element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fcc polycrystals. The polycrystals are simple, idealized arrangements of grains. Localized deformations within individual grains lead to the development of domains that are separated by boundaries of high misorientation. Shear banding is seen to occur on a microscopic scale of grain dimensions. The important consequences of these simulations are that the predicted local inhomogeneities are meeting various requirements which make them possible nucleation sites for recrystallization.

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7 p.

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Beaudoin, A. J., Jr.; Mecking, H. & Kocks, U. F. May 1, 1995.

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A finite element formulation which derives constitutive response from crystal plasticity theory is used to examine localized deformation in fcc polycrystals. The polycrystals are simple, idealized arrangements of grains. Localized deformations within individual grains lead to the development of domains that are separated by boundaries of high misorientation. Shear banding is seen to occur on a microscopic scale of grain dimensions. The important consequences of these simulations are that the predicted local inhomogeneities are meeting various requirements which make them possible nucleation sites for recrystallization.

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7 p.

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INIS; OSTI as DE95012072

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  • 5. international conference on numerical methods in industrial forming processes (NUMIFORM), Ithaca, NY (United States), 18-21 Jun 1995

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  • Other: DE95012072
  • Report No.: LA-UR--95-1319
  • Report No.: CONF-9506144--6
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 70792
  • Archival Resource Key: ark:/67531/metadc712431

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  • May 1, 1995

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  • Sept. 12, 2015, 6:31 a.m.

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  • June 23, 2016, noon

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Beaudoin, A. J., Jr.; Mecking, H. & Kocks, U. F. Development of local shear bands and orientation gradients in fcc polycrystals, article, May 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc712431/: accessed August 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.