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


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.


Polymer Microscopy Electron Microscopy Transmission Electron Microscopy Plastic Deformation 
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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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