The development of high angle deformation boundaries and local orientations in aluminum

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Description

High angle boundaries and their local surroundings are important for all aspects of recrystallization including nucleation, growth and texture formation. They are thus important for processing of aluminum alloys. Deformation induced high angle boundaries have been observed and quantitatively characterized using transmission electron microscopy in aluminum following rolling to large reductions. The distribution of local orientations between individual dislocation boundaries and their angle/axis pairs have been measured using convergent beam Kikuchi analysis and are compared to the macroscopic texture. The sequence of near neighbor orientations shows that individual grains subdivide across their thickness into three to four different texture components ... continued below

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16 p.

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Hughes, D.A. March 1, 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Livermore, CA (United States)
    Place of Publication: Livermore, California

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Description

High angle boundaries and their local surroundings are important for all aspects of recrystallization including nucleation, growth and texture formation. They are thus important for processing of aluminum alloys. Deformation induced high angle boundaries have been observed and quantitatively characterized using transmission electron microscopy in aluminum following rolling to large reductions. The distribution of local orientations between individual dislocation boundaries and their angle/axis pairs have been measured using convergent beam Kikuchi analysis and are compared to the macroscopic texture. The sequence of near neighbor orientations shows that individual grains subdivide across their thickness into three to four different texture components separated by sharp boundaries. The local orientations surrounding high angle boundaries are much more diverse than suggested by simple models and single crystal studies. The origins for these high angle boundaries are suggested and discussed.

Physical Description

16 p.

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OSTI as DE96006483

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  • Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996

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  • Other: DE96006483
  • Report No.: SAND--95-8680C
  • Report No.: CONF-960202--11
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 207059
  • Archival Resource Key: ark:/67531/metadc670730

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 12, 2016, 8:15 p.m.

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Hughes, D.A. The development of high angle deformation boundaries and local orientations in aluminum, article, March 1, 1996; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc670730/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.