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  • The severe plastic deformation method known as constrained groove pressing was used to produce ultrafine-grained microstructure in recrystallized aluminium (99.99%) at room temperature. The impact of repeated groove pressing, upon microstructure refinement was investigated by transmission electron microscopy of thin foils. Changes in mechanical properties measured by tensile and by hardness tests were related to microstructure development. The formation of banded subgrain microstructure with dislocation cells, and appearance of polygonal subgrains was a common feature observed in deformed plate subjected to the first pass. The substantial impact of strain upon strength increase was observed after the first pressings. The yield stress and ultimate tensile strength reached a maximum after four passes. A loss of ductility was observed in all processed plates. Hardness values measured across the deformed plates indicated heterogeneous strain distribution.
  • The severe plastic deformation method known as constrained groove pressing was used to produce ultrafine-grained microstructure in recrystallized aluminium (99.99%) at room temperature. The impact of repeated groove pressing, upon microstructure refinement was investigated by transmission electron microscopy of thin foils. Changes in mechanical properties measured by tensile and by hardness tests were related to microstructure development. The formation of banded subgrain microstructure with dislocation cells, and appearance of polygonal subgrains was a common feature observed in deformed plate subjected to the first pass. The substantial impact of strain upon strength increase was observed after the first pressings. The yield stress and ultimate tensile strength reached a maximum after four passes. A loss of ductility was observed in all processed plates. Hardness values measured across the deformed plates indicated heterogeneous strain distribution. (en)
Title
  • Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing
  • Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing (en)
skos:prefLabel
  • Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing
  • Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing (en)
skos:notation
  • RIV/26316919:_____/09:#0000182!RIV10-MSM-26316919
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM2631691901)
http://linked.open...iv/cisloPeriodika
  • 15.03.2009
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 347481
http://linked.open...ai/riv/idVysledku
  • RIV/26316919:_____/09:#0000182
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Constrained groove pressing, aluminium, severe plastic deformation, microstructure evolution, recovery, mechanical properties (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • IE - Irsko
http://linked.open...ontrolniKodProRIV
  • [BB631D22E870]
http://linked.open...i/riv/nazevZdroje
  • Materials Science and Engineering A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 503
http://linked.open...iv/tvurceVysledku
  • Nový, Zbyšek
  • Zrník, Jozef
http://linked.open...n/vavai/riv/zamer
issn
  • 0921-5093
number of pages
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