Nanostructured Metal and Metal Oxide Materials

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (30 June 2014) | Viewed by 8370

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Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284-2006, USA
Interests: molecular clusters; gas phase and cluster polymerization; nucleation phenomena and nanostructured materials
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Keywords

  • large surface areas
  • nanoscale particles
  • unusual adsorptive
  • surface defects
  • fast diffusivities
  • metal oxide

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Published Papers (1 paper)

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Research

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Article
Grain Refinement and Deformation Mechanisms in Room Temperature Severe Plastic Deformed Mg-AZ31
by Enrico Knauer, Jens Freudenberger, Tom Marr, Alexander Kauffmann and Ludwig Schultz
Metals 2013, 3(3), 283-297; https://doi.org/10.3390/met3030283 - 18 Jul 2013
Cited by 22 | Viewed by 7918
Abstract
A Ti-AZ31 composite was severely plastically deformed by rotary swaging at room temperature up to a logarithmic deformation strain of 2.98. A value far beyond the forming limit of pure AZ31 when being equivalently deformed. It is observed, that the microstructure evolution in [...] Read more.
A Ti-AZ31 composite was severely plastically deformed by rotary swaging at room temperature up to a logarithmic deformation strain of 2.98. A value far beyond the forming limit of pure AZ31 when being equivalently deformed. It is observed, that the microstructure evolution in Mg-AZ31 is strongly influenced by twinning. At low strains the {̅1011} (10̅12) and the {̅1012} (10̅11) twin systems lead to fragmentation of the initial grains. Inside the primary twins, grain refinement takes place by dynamic recrystallization, dynamic recovery and twinning. These mechanisms lead to a final grain size of ≈1 μm, while a strong centered ring fibre texture is evolved. Full article
(This article belongs to the Special Issue Nanostructured Metal and Metal Oxide Materials)
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