English, Article edition: FIELD-ION MICROSCOPY OBSERVATIONS AND ATOMISTIC SIMULATIONS OF RIGID-BODY SHIFTS AT TILT GRAIN BOUNDARIES IN TUNGSTEN V. M. AZHAZHA; I. M. NEKLYUDOV; V. A. KSENOFONTOV; ...

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Bookmark: http://trove.nla.gov.au/version/84339
Physical Description
  • article
Language
  • English

Edition details

Title
  • FIELD-ION MICROSCOPY OBSERVATIONS AND ATOMISTIC SIMULATIONS OF RIGID-BODY SHIFTS AT TILT GRAIN BOUNDARIES IN TUNGSTEN
Author
  • V. M. AZHAZHA
  • I. M. NEKLYUDOV
  • V. A. KSENOFONTOV
  • T. I. MAZILOVA
  • I. M. MIKHAILOVSKIJ
  • E. V. SADANOV
  • A. A. MAZILOV
Physical Description
  • article
Notes
  • Field-ion microscopy and molecular dynamics simulation were used for the characterization of the translation states at special grain boundaries in tungsten. It is revealed that rigid-body displacement had the component of displacement parallel to the [110] direction equal to 0 or 1 interplanar spacing. Full vectors of lateral shifts are described by broad statistical distribution. The mathematical simulation revealed two mirror-symmetry-breaking lateral translations along the $[{\bar{2}21}]$ direction of the Σ9 grain boundary corresponding to different atomic structures. It is shown that the partial disconnection with the $(a/​18)[{\bar{2}21}]$ Burgers vector can be considered as the elemental carriers of grain-boundary polymorphic transformation.
  • Grain boundary, atomic structure, tungsten, molecular dynamic simulation, field-ion microscopy
  • RePEc:wsi:srlxxx:v:15:y:2008:i:05:p:557-565
Language
  • English
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