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Metallurgical and Materials Transactions A

, Volume 41, Issue 13, pp 3473–3487 | Cite as

Distribution Characteristics of In-Grain Misorientation Axes in Cold-Rolled Commercially Pure Titanium and Their Correlation with Active Slip Modes

  • Y. B. Chun
  • M. Battaini
  • C. H. J. Davies
  • S. K. Hwang
Article

Abstract

The distribution characteristics of in-grain misorientation axes (IGMA) in cold-rolled pure titanium were investigated using electron backscatter diffraction (EBSD). Depending on the orientation of individual grains, two distinct IGMA distribution patterns were observed: one with strong intensities of IGMA around ⟨0001⟩ and the other with those around ⟨uvt0⟩. Analyses based on the Taylor axes and Schmid factors of possible slip modes suggested that the former pattern arises from predominant activation of prism ⟨a⟩ slip, while activation of \( \{ 11\bar{2}2\} \langle \bar{1}\bar{1}23 \rangle \) slip under the suppression of prism ⟨a⟩ slip results in the latter pattern. It was also found that prism ⟨a⟩ slip becomes more active with increasing strain, playing a critical role in the plasticity of pure titanium. The present work demonstrates that IGMA analysis of EBSD data may be used to explore the active slip mode in polycrystalline hexagonal-close-packed (hcp) metals deformed to moderate to large strains.

Keywords

Misorientation Angle Slip Mode Cold Reduction IGMA Distribution Discrete Pole Figure 
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.

Notes

Acknowledgments

The present work was performed under the auspices of the Korea Science and Engineering Foundation (KOSEF) through the 2009 Basic Science Program and was also supported by the Australian Research Council through the Centre of Excellence for Design in Light Metals.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2010

Authors and Affiliations

  • Y. B. Chun
    • 1
  • M. Battaini
    • 2
  • C. H. J. Davies
    • 1
  • S. K. Hwang
    • 3
  1. 1.ARC Centre of Excellence for Design in Light Metals, Department of Materials EngineeringMonash UniversityClaytonAustralia
  2. 2.Advanced Materials GroupAECOM, Fortitude ValleyQueenslandAustralia
  3. 3.School of Materials Science and EngineeringInha UniversityIncheonSouth Korea

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