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Atomic group rotation mechanism of {1013} twinning in HCP materials

  • Shan Jiang , Bin Zeng and Lyes Douadji
Published/Copyright: April 12, 2014
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 105 Issue 4

Abstract

In this paper the mechanism of {1013} twinning was studied through the application of the atomic group rotation model. The atomic displacement vectors of some selected atoms were calculated and the general formulas for calculating the displacement vectors of the twinning atoms were obtained; the atomic group rotation mechanism was then proposed. It was found that two types of alternately distributed atomic groups exist in {1013} twinning as in {1011} twinning. The atomic groups rotate by an angle of 6.3°, and a relative displacement magnitude of 0.539a is produced. The larger relative displacement magnitude produced during twinning may be the reason that {1013} twinning occurs more rarely than {1011} twinning.

Keywords: Hexagonal close-packed; Twinning; Atomic groups; Mechanism; Modeling
* Correspondence address, Shan Jiang PhD, 2nd Yangliu Road, Huangshan Avenue, New North Zone, Chongqing 401123, China, Tel.: +86-018725771034, E-mail:

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Received: 2013-11-01
Accepted: 2013-12-09
Published Online: 2014-04-12
Published in Print: 2014-04-14

© 2014, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111038
Keywords for this article
Hexagonal close-packed; Twinning; Atomic groups; Mechanism; Modeling

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Microstructure and residual stresses of laser remelted surfaces of a hot work tool steel
  5. Dynamic observation of twin evolution during austenite grain growth in an Fe–C–Mn–Si alloy
  6. Hot ductility behavior of Incoloy901 superalloy in the cast and wrought conditions
  7. The influence of aluminium intermediate layer in dissimilar friction welds
  8. Effect of TiO2 in aluminum matrix on workability behavior of powder metallurgy composites during cold upsetting
  9. Approach to evaluation of the overall strengthening and toughening effect of continuous fiber-reinforced ceramic matrix composites
  10. The effect of SiC/Al2O3 particles used during FSP on mechanical properties of AZ91 magnesium alloy
  11. Studies on salt fog corrosion behavior of friction stir welded AA7075–T651 aluminum alloy
  12. Evaluation of corrosion performance of two Mn-containing stainless steel alloys
  13. Carbothermal synthesis of β-SiC powders from silicon and SiO2-coated carbon powders
  14. Synthesis and application of TiO2 nanotubes in environmental pollutant removal
  15. Mechanical properties of polyvinyl alcohol sponge under different strain rates
  16. Short Communications
  17. Effects of Al2O3 phase composition on AlON powder synthesis via aluminothermic reduction and nitridation
  18. Atomic group rotation mechanism of {1013} twinning in HCP materials
  19. Self-propagation high-temperature sintering of the Ti–Al–C-diamond/BN system
  20. People
  21. The German Materials Society congratulates its long-time Managing Director Dr. Peter Paul Schepp on the occasion of his 65th birthday
  22. Dr. Margarethe Hofmann-Amtenbrink on her 65th birthday
  23. DGM News
  24. DGM News
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