Peer-reviewed publications:

  1. Gröger R., Vitek V., Lookman T.: Mesoscale plastic texture in body-centered cubic metals under uniaxial load. Phys. Rev. Mat. 1:063601 (2017).

  2. Fikar J., Gröger R., Schäublin R.: Effect of orientation of prismatic dislocation loops on interaction with free surfaces in BCC iron. J. Nucl. Mater. (2017) in press.

  3. Fikar J., Gröger R.: Interaction of irradiation-induced prismatic dislocation loops with free surfaces in tungsten. Nucl. Instr. Meth. Phys. Res. B 393:186 (2017).

  4. Gröger R., Marchand B., Lookman T.: Dislocations via incompatibilities in phase-field models of microstructure evolution. Phys. Rev. B 94:054105 (2016)

  5. Hernandez-Maldonado D., Yang H., Jones L., Gröger R., Hirsch P. B., Ramasse Q. M., Nellist P. D.: STEM optical sectioning for imaging screw dislocations core structures in BCC metals. Microsc. Microanal. 22:1932 (2016).

  6. Ostapovets A., Buršík J., Gröger R.: Deformation due to migration of faceted twin boundaries in magnesium and cobalt. Philos. Mag. 95:4106 (2015)

  7. Fikar J., Gröger R.: Interactions of 1/2<111> prismatic dislocation loops with parallel {111} free surfaces of free-standing foils in body-centered cubic iron. Acta Mater. 99:392 (2015)

  8. Gröger R., Vitek V.: Determination of positions and curved transition pathways of screw dislocations in BCC crystals from atomic displacements. Mat. Sci. Eng. A 643:203 (2015)

  9. Gröger R., Leconte L., Ostapovets A.: Structure and stability of threading edge and screw dislocations in bulk GaN. Comp. Mater. Sci. 99:195 (2015)

  10. Gröger R.: Which stresses affect the glide of screw dislocations in bcc metals? Philos. Mag. 94:2021 (2014) arXiv:1111.5709

  11. Ostapovets A., Gröger R.: Twinning disconnections and basal-prismatic twin boundary in magnesium. Model. Simul. Mater. Sci. Eng. 22:025015 (2014)

  12. Gröger R.: Thermodynamics of dislocation pattern formation at the mesoscale. Key Eng. Mat. 592-593:79-82 (2014)

  13. Gröger R., Vitek V.: Stress dependence of the Peierls barrier of 1/2<111> screw dislocations in BCC metals. Acta Mater. 61:6362-6371 (2013)

  14. Srivastava K., Gröger R., Weygand D., Gumbsch P.: Dislocation motion in tungsten: Atomistic input to discrete dislocation simulations. Int. J. Plast. 47:126-142 (2013)

  15. Gröger R., Vitek V.: Constrained Nudged Elastic Band calculation of the Peierls barrier with atomic relaxations. Model. Simul. Mater. Sci. Eng.20:035019 (2012) arXiv:1111.5709

  16. Gröger R., Dudeck K.J., Nellist P.D., Vitek V., Hirsch P.B., Cockayne, D.J.H.: Effect of Eshelby twist on core structure of screw dislocations in molybdenum: Atomic structure and electron microscope image simulations. Philos. Mag. 91:2364 (2011)

  17. Gröger R., Lookman T.: Influence of dislocations on the spatial variation of microstructure in martensites. Key Eng. Mat. 465:77-80 (2011)

  18. Gröger R., Lookman T., Saxena A.: Incompatibility of strains and its application to mesoscopic studies of plasticity. Phys. Rev. B 82:144104 (2010) arXiv:1005.0903

  19. Gröger R., Vitek V.: Directional versus central-force bonding in studies of the structure and glide of 1/2<111> screw dislocations in bcc transition metals. Philos. Mag. 89:3163 (2009)
    Special issue: 25th anniversary of the Finnis-Sinclair methods and related issues

  20. Gröger R., Vitek V.: Temperature and strain rate dependent flow criterion for bcc transition metals based on atomistic analysis of dislocation glide. Int. J. Mater. Res. 100:315 (2009)

  21. Gröger R., Lookman T., Saxena A.: Atomistic studies of transformation pathways and energetics in plutonium. Philos. Mag. 89:1779 (2009)
    arXiv:0812.0985
    Special issue: Symposium on correlated electron materials

  22. Gröger R., Lookman T., Saxena A.: Defect-induced incompatibility of elastic strains and dislocation behavior in the Landau theory of martensitic phase transformations. Phys. Rev. B 78:184101 (2008). arXiv:0806.4564

  23. Gröger R., Vitek V.: Multiscale modeling of plastic deformation of molybdenum and tungsten: III. Incorporation of the effects of temperature and strain rate. Acta Mater. 56:5426 (2008). arXiv:0807.2772

  24. Gröger R., Racherla V., Bassani J.L., Vitek V.: Multiscale modeling of plastic deformation of molybdenum and tungsten: II. Yield criterion for bcc metals involving the non-Schmid behavior of dislocations. Acta Mater. 56:5412 (2008). arXiv:0807.2771

  25. Gröger R., Bailey A.G., Vitek V.: Multiscale modeling of plastic deformation of molybdenum and tungsten: I. Atomistic studies of the core structure and glide of 1/2<111> screw dislocations at 0 K. Acta Mater. 56:5401 (2008). arXiv:0807.2667

  26. Mrovec M., Gröger R., Bailey A.G., Nguyen-Manh D., Elsässer C., Vitek V.: Bond-order potential for simulations of extended defects in tungsten. Phys. Rev. B 75:104119 (2007).

  27. Gröger R., Vitek V.: Explanation of the discrepancy between the theoretical and measured yield stresses in body-centered cubic metals. Phil. Mag. Lett. 87:113-120 (2007). cond-mat/0605449v1

  28. Gröger R., Vitek V.: Breakdown of the Schmid law in bcc molybdenum related to the effect of shear stress perpendicular to the slip direction. Mat. Sci. Forum 482:123-126 (2005). arXiv:0808.0738

  29. Nguyen-Manh D., Cawkwell M.J., Gröger R., Mrovec M., Porizek R., Pettifor D.G., Vitek V.: Dislocations in materials with mixed covalent and metallic bonding. Mat. Sci. Eng. A400-401:68-71 (2005).

  30. Vitek V., Mrovec M., Gröger R., Bassani J.L., Racherla V., Yin L.: Effects of non-glide stresses on the plastic flow of single and polycrystals of molybdenum. Mat. Sci. Eng. A387-389:138-142 (2004).

Theses:


Gröger R.: Development of physically based plastic flow relations for body-centered cubic metals with temperature and strain rate dependencies. University of Pennsylvania (2007). arXiv:0707.3577

Gröger R.: An application of an integral approach for the calculation of fracture-mechanics parameters of general stress concentrators. Brno University of Technology (2003).


In conference proceedings & others:

  1. Gröger R., Lookman T.: Mesoscopic model of phase transformations at finite strain rates with continuum plasticity and nonclassical heat transfer. Proc. Conf. Plasticity-2011, Puerto Vallarta, Mexico, January 3-8, 2011.

  2. Gröger R., Lookman T., Saxena A.: Influence of dislocations on the spatial variation of microstructure in martensites. Key Eng. Mater. 465:77-80 (2011). arXiv:1007.2708

  3. Gröger R., Lookman T., Saxena A.: Mesoscopic description of martensitic phase transformations mediated by dislocations using the Landau-Ginzburg theory. Proc. Conf. 4th Multiscale Materials Modeling, 104-107 (2008).

  4. Gröger R., Vitek V.: Analytical plastic flow rules for bcc metals involving non-Schmid effects. Proc. Conf. Plasticity-2008, Hawaii, January 3-8, 2008.

  5. Gröger R.: Chain-of-states atomistic calculations of the pathways and energetics of structural phase transformations in plutonium. Actinide Research Quarterly, Los Alamos National Laboratory (October 2007), p.11-13.

  6. Gröger R., Vitek V.: Effect of non-glide stresses on deformation of BCC metals at finite temperatures. Proc. 3rd Conf. Multiscale Materials Modeling, Gumbsch P. (Ed.), Freiburg (2006), p.571.