Length scale effects on recrystallization and texture evolution in Cu layers of a roll-bonded Cu–Nb composite

The Suppression of Instabilities via Biphase Interfaces During Bulk Fabrication of Nanograined Zr

“…Very recently in a study of ARB Cu-Nb composites, it was found that at finer layers h < 1.9 μm, a typical recrystallized microstructure did not develop after annealing. [66] A similar finding is revealed for the ARB Zr-Nb composites through an EBSD-based study. More than 20, 000 μm 2 of Zr-Nb material (h = 1.5 μm) was scanned in the as-rolled and annealed states with no difference in grain size noted.…”

“…This indicated that the annealing treatment had little microstructural and textural effects at this reduced length scale in comparison with Figure 4. Previously, it was proposed in [66] that the bimetal interfaces can act as sinks for dislocations, leading to a reduction in the dislocation content in the phases with strain and consequently a reduction in the driving force for recrystallization after deformation. Our analysis suggests that a similar phenomenon is operating in Zr-Nb.…”

Structure, shear resistance and interaction with point defects of interfaces in Cu–Nb nanocomposites synthesized by severe plastic deformation

“…In this study, we use atomistic modeling to study one specific heterophase interface between face-centered cubic copper (fcc Cu) and body-centered cubic niobium (bcc Nb) found in nanocomposites formed by two different severe plastic deformation (SPD) techniques: accumulative drawing and bundling (ADB) [11,12] and accumulated roll bonding (ARB) [13,14]. We then compare our results to prior work on another type of Cu-Nb interface found in magnetron sputtered composites [6,9,[15][16][17][18][19].…”

“…In this process, Cu and Nb plates are repeatedly stacked and rolled, once again reducing their microstructural dimensions to nanometer levels [13]. With successive cycles, the composite develops a texture in the rolling direction similar to that found in the wire direction in ADB composites, namely {111}Cu and {110}Nb planes are parallel to each other and normal to the rolling direction.…”

Characteristics of the Cold-Rolling Texture in a Multi-Layered Material Composed of SUS301 and SUS420J2 Steels

“…It is considered that the different mechanical properties of the components in composites will obviously affect the stress and strain states during rolling and further influence the crystallographic texture development in the component steels. 11) Up to now, investigations on texture development in multilayered materials are only focused on Al alloy during hotrolling bonding for structural applications 11) and functional materials such as multi-layered Ni base tapes in superconductor application, 12) sputter-deposited nano-scale Cu/ Nb multi-layered thin films, 13) micro-scale Cu/Nb composite 14) and Mg/Al laminated composite fabricated by accumulative roll bonding. 15) In addition, comparative studies on texture development have not been addressed between monolithic and multi-layered materials, especially for structural steels.…”