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Modeling of Strain-Induced Phase Transformations Under High Pressure and Shear

  • Mehdi Kamrani
  • Biao Feng
  • Valery I. Levitas
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The strain-induced α → ω phase transformation (PT) in a zirconium sample under compression and torsion under fixed load is investigated using the finite-element method (FEM), and results are compared to those for a sample in a diamond anvil cell (DAC) and a rotational diamond anvil cell (RDAC). Highly heterogeneous fields of stresses, strains, and concentration of the high-pressure phase are presented and analyzed. Some experimentally observed effects are analyzed and interpreted.

Keywords

Strain-induced phase transformations Zirconium High pressure Diamond anvil cell Rotational diamond anvil cell 

Notes

Acknowledgements

The support of NSF (DMR-1434613), ARO (W911NF-12-1-0340), and Iowa State University (Schafer 2050 Challenge Professorship and Vance Coffman Faculty Chair Professorship) is gratefully acknowledged.

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.Department of Aerospace EngineeringIowa State UniversityAmesUSA
  2. 2.Los Alamos National LaboratoryLos AlamosUSA
  3. 3.Departments of Aerospace EngineeringMechanical Engineering, and Material Science and Engineering, Iowa State UniversityAmesUSA
  4. 4.Ames LaboratoryDivision of Materials Science and EngineeringAmesUSA

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