Calculations of Lengths of Dislocation Combinations in FCC Crystals

In the present work, lengths of dislocation combinations formed as a result of interaction of reacting dislocations in noncoplanar glide systems are calculated. A new model is suggested in which the geometry of dislocation combination is considered for an arbitrary asymmetrical intersection of dislocation segments. The lengths of dislocation combinations are determined on the example of one dislocation reaction. The statistics of an arbitrary intersection of the reacting dislocations are considered for an arbitrary (from screw to edge) orientation of a glissile dislocation.     

Cottrell−Stokes Law for Ni3Ge Intermetallic Single Crystals with the [ 2 ¯ $$ \overline{2} $$ 3 4] Compression Axis

Russian Physics Journal - In an experiment on the temperature variation during plastic deformation of Ni3Ge alloy single crystals with the [ $$ \overline{2} $$ 3 4] orientation of the deformation...     

Deformation-Induced Destruction of the Long-Range Order in Single Crystals of Ni3Fe Alloy

In the present work, x-ray diffraction and electron microscopy are used to investigate the state of a Ni₃Fe single crystal during plastic deformation. It is demonstrated that the observed destruction of long-range atomic order is accompanied with splitting of superdislocations and generation of single dislocations. The change of the long-range order parameter for single crystals deformed in the [001] direction estimated from the degree of splitting of superdislocations is in good agreement with x-ray measurements of this parameter. The destruction of long-range order for intermediate deformations < 40% is well described by the model of mechanical mixing of the alloy, the main role in which is played by the mechanisms of plane defect generation by shears along slip planes.     

The Effect of Stress Concentrators on the Formation of Superlocalized Plastic Deformation Bands

Russian Physics Journal - The superlocalization of plastic deformation in single crystal L12 superlattice alloys subjected to uniaxial compression is studied by a mathematical modeling technique....     

Effect of the orientation of strain axes on the creep in Ni<Subscript>3</Subscript>Ge alloy single crystals

The creep in Ni₃Ge alloy single crystals with strain axis orientations of [001], [$ \bar 1 $ \bar 1 39], [$ \bar 2 $ \bar 2 34], and [$ \bar 1 $ \bar 1 22] was investigated. It was found that changes in strain axis orientation that lead to cubic slip increase the creep resistance of Ni₃Ge alloy single crystals.