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Journal of Materials Science

, Volume 30, Issue 7, pp 1766–1771 | Cite as

Transmission electron microscopy study of plastic deformation in NiZr2

  • D. Galy
  • L. Boulanger
Papers

Abstract

Plastic deformation mechanisms in the body centred tetragonal (C16-structure) NiZr2 compound have been studied using transmission electron microscopy. Dislocations, stacking faults and microtwins have been characterized. Four families of dislocations have been identified: screw-type (b=[0 0 1]), edge-type ([0 0 1](1 1 0) and [110] (1¯10) systems) and mixed-type (1/2[1¯11] (110) system). Partial dislocations associated with stacking faults have also been detected and analysed. The plane of the faults is shown to be (1¯10) and the fault vectors 1/4 [1 1 1] and 1/4 [11¯1]. A hard-sphere model illustrating the formation mechanism of these stacking faults is proposed. The microtwins are found to be 60° rotation twins around the [1¯10]* direction and can be described by the stacking faults scheme.

Keywords

Polymer Microscopy Electron Microscopy Transmission Electron Microscopy Plastic Deformation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • D. Galy
    • 1
  • L. Boulanger
    • 1
  1. 1.Section de Recherches de Métallurgie PhysiqueDTA/CEREM/DTMGif sur YvetteFrance

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