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Study of Compressive Twinning Behavior in High-purity Titanium
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Chongqing University,,,

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    Abstract:

    Compressive twinning behavior in high-purity titanium was studied by electrical back-scattered diffraction (EBSD) techniques. The results show that {11-24} twins are always accompanied with {11-22} twins in some specific grains, and individual {11-24} twin is not observed in microstructure of the deformed sample. The formation of {11-24} twin is attributed to the changes of local stress states, which induced by the {11-22}-{11-22} twin variants interactions or {11-22} twin interactes with the grain boundaries. The {11-22} and {11-24} twins tend to share a common rotation axis with one of the {11-22} twin variant within an initial grain. In addition, due to the crystal symmetry and the orientation relationships between {11-22} and {11-24} twins, interactions between {11-22} and {11-24} twins inevitably occur, which results in four different types of {11-22}-{11-24} twin junctions.

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[Ren Yi, Zhang Xiyan, Sun Qi, Liu Qing. Study of Compressive Twinning Behavior in High-purity Titanium[J]. Rare Metal Materials and Engineering,2018,47(7):2061~2066.]
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History
  • Received:September 02,2016
  • Revised:December 28,2016
  • Adopted:February 21,2017
  • Online: October 10,2018
  • Published: