Raja K. Mishra

TL;DR: The experiments show that submicrometre nickel crystals microfabricated into pillar structures contain a high density of initial defects after processing but can be made dislocation free by applying purely mechanical stress, leading to clear evidence of source-limited deformation.

TL;DR: In this paper, the authors investigated the effects of deformation twinning on various aspects of plastic deformation, including the anisotropic strain-hardening rates, the tension/compression yield asymmetry, and the evolution of crystallographic texture.

TL;DR: In this paper, the texture properties of AZ31 Mg sheet were measured under different loadings along rolling direction (RD), 45° to rolling direction, 90° to roll direction (TD), and normal to the sheet (ND) to large strains.

TL;DR: In this paper, a significant increase in elongation in Mg due to the addition of only 0.2% Ce was described, which is explained as the Ce addition altering the texture of the extruded rods during recrystallization by orienting the c-axis of the grains at an angle that favors basal slip activity.

TL;DR: The fundamental embryonic structure of deformation twins is revealed using in situ mechanical testing of magnesium single crystals in a transmission electron microscope, shedding light on the origin of twinning-induced plasticity and transformation toughening, critical to the development of advanced structural alloys with high strength, ductility, and toughness.