Modeling of Strain-Induced Phase Transformations Under High Pressure and Shear
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.
KeywordsStrain-induced phase transformations Zirconium High pressure Diamond anvil cell Rotational diamond anvil cell
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.
- 1.Levitas VI (2004) Continuum mechanical fundamentals of mechanochemistry. In: Gogotsi Y, Domnich V (eds) High-pressure surface science and engineering (chapter 3). Taylor & Francis. https://doi.org/10.1201/9781420034134.sec3
- 3.Novikov NV, Polotnyak SB, Shvedov LK, Levitas VI (1999) Regularities of phase transformations and plastic straining of materials in compression and shear in diamond anvils: experiments and theory. J Superhard Mater 3:39–51Google Scholar
- 13.Levitas VI (1996) Large deformation of materials with complex rheological properties at normal and high pressure. Nova Science Publishers, New YorkGoogle Scholar
- 14.Abaqus V6.11 (2011) User subroutines. Abaqus INC, Providence RI, USAGoogle Scholar
- 15.Guler E, Guler M (2015) Elastic and mechanical properties of cubic diamond under pressure. Chin J Phys 53:040807Google Scholar
- 16.Zilbershtein VA, Chistotina NP, Zharov AA, Grishina NS, Estrin EI (1975) Alpha-omega transformation in titanium and zirconium during shear deformation under pressure. Fiz Met I Metalloved 39:445–447Google Scholar