The Influence of Thermomechanical Treatment Conditions on Characteristics of Structural-Phase Transformations and Level of Mechanical Properties of Vanadium Alloys of Different Systems

Russian Physics Journal - The data on the influence of thermomechanical treatment modes on characteristics of the short-term strength and plasticity of vanadium alloys of different systems...     

Nanodipoles of Partial Disclinations and Strain Localization Mechanism of Nanostructured Materials in the Elastic Region

Russian Physics Journal - In the course of severe plastic deformation of nickel in the Bridgman anvils, a phenomenon of strain localization is observed in the region of elastic distortions, which...     

Effect of Preliminary Treatment on Microstructure,Mechanical Properties and Fracture of Ni3Al Samples Synthesized by Spark Plasma Sintering

Russian Physics Journal - A comparative study of microstructure parameters and mechanical property characteristics of consolidated Ni3Al samples formed by spark plasma sintering after a preliminary...     

The Influence of TiC Particles on the Structure and Mechanical Properties of Ni3Al Manufactured By Spark Plasma Sintering

Russian Physics Journal - Using precursors, prepared by a preliminary mechanical activation of the 3Ni–Al powder mixture in the energy-intensive ball mills with and without a subsequent...     

Peculiarities of the formation of high-defect states in mechanocomposites and powders of niobium and aluminum under severe deformation in planetary ball mills

The microstructural peculiarities of Nb powder and Nb + Al powder mixtures after mechanical activation in a high-energy planetary ball mill were investigated by transmission electron microscopy. The materials revealed two-level structural states: nanograins of size from 50 to 100 nm that contain subgrains of size ～20 nm and less with low-angle misorientation boundaries, elastic lattice curvature gC _ij ≈100°…200°μm^?1, curl or curvature gradient ?χ _ij /? _r > 100 μm^?2 and high (up to 10E μm^?1) local stress gradients (couples). An important factor in the formation of the above states is the capability of nano-objects to reach high elastic lattice curvature, high gradients of this curvature, and high local internal stress gradients at rather low absolute values of the internal stress.     

Theoretical Analysis of the Distortion Tensors During the Formation Of 90° <110> Reorientation Nanobands in the Course of Plastic Deformation of Nickel on Bridgman Anvils

Russian Physics Journal - Based on the results of electron microscopy examinations, a theoretical study of the distortion tensors of strain localization nanobands with a 90°...