3 papers
cond-mat.mtrl-sci2008
Multiscale modeling of plastic deformation of molybdenum and tungsten: III. Effects of temperature and plastic strain rate
R. Gröger, V. Vitek
In this paper we develop a link between the atomic-level modeling of the glide of 1/2<111> screw dislocations at 0 K and the thermally activated motion of these dislocations via nu…
cond-mat.mtrl-sci2008
Multiscale modeling of plastic deformation of molybdenum and tungsten: II. Yield criterion for single crystals based on atomistic studies of glide of 1/2<111> screw dislocations
R. Gröger, V. Racherla, J. L. Bassani +1
Based on the atomistic studies presented in Part I we develop analytical yield criteria for single crystals that capture the effect of shear stresses other than the Schmid stress (…
cond-mat.mtrl-sci2008
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
R. Gröger, A. G. Bailey, V. Vitek
Owing to their non-planar cores 1/2<111> screw dislocations govern the plastic deformation of BCC metals. Atomistic studies of the glide of these dislocations at 0 K have been perf…