Structure and development of slip lines during plastic deformation of the intermetallic phases Fe3A1 and CuZn

Temperature Dependence of Pseudoelasticity and Shape Memory Effect in Fe3Ga Single Crystals with D03 Structure

“…Brinck et al 18) suggested that the relaxation (reordering) of APB between the coupled superpartials was associated with the serrated flow. To show serrated behavior, high diffusion rate of constituent atoms is necessary and the relaxation time required for the diffusion should be in the order of 10 Ϫ1 s. 20) Such requirement can be satisfied at high temperatures (e.g.…”

“…Such serration was reported to be closely related to dynamic strain aging of APB. 18) In contrast, a serrated flow associated with deformation twins was observed in the stressstrain curve at Ϫ150°C. In Fig.…”

Role of discrete intragranular slip on lattice rotations in polycrystalline Ni: Experimental and micromechanical studies

“…Consequently, local incompatibilities (and local lattice orientation), such as those introduced by Nye [17] and Krö ner [14], can be perturbed by the discrete nature of intragranular slip. Experimental observations of deformed polycrystalline samples in fact show that the plastic process is strongly heterogeneous inside grains, which corresponds to discrete space-time mechanisms (creation and movement of dislocations) observable on surfaces as slip lines/bands [18][19][20][21][22][23][24] and in the bulk by transmission electron microscopy [25]. Physically, some intragranular dislocations forming slip bands pile-up on grain boundaries and grains may be split into sub-grains bounded by dislocation networks (dislocation cells and dislocation walls [26,27]).…”

Micro‐ and Nanoscale Evaluation of Scratch Damage in Poly(propylene)s

“…Atomic force microscopy (AFM) has emerged as a powerful technique to study the surface morphology of different load and non‐load bearing materials such as polymers, metals, and thin films, and to measure their mechanical properties on nano‐ to pico‐scales 23. The excellent resolution and potential of AFM to quantitatively describe the surface topography has opened up new opportunities to study the surface‐deformation behavior of engineering materials 24–33. In previous investigations, we have utilized the potential of AFM to evaluate the extent of mechanically induced surface damage during tensile deformation of high‐density polyethylene (HDPE), and poly(propylene)s at different strain rates 16,19–21…”