Nanoplastic deformation on Ti–39 at.% Al single crystals for manipulation of every single γ lamella

摘要: The effects of nanoscale plastic deformation, produced by nanoimprinting, nanoindentation and nanogrooving, on the formation periodic dislocation bands in Ti–39 Al (at.%) single crystals were investigated, with a focus periodic, parallel basal dislocations. Slip traces both prism slips nanoindented crystal’s surface, while only slip formed surfaces nanoimprinted nanogrooved crystals. A band, consisting dislocations relatively high density non-basal tangles exceedingly density, was beneath trench. However, low-density indentations. zones narrow; moreover, or connected to reasons for these formations examined based motion affected antiphase domain boundaries as well cross-slip onto (0 0 0 1) planes. According band characteristics, nanogrooving is most appropriate three processes producing tunable intervals. Furthermore, pair long thin γ lamellae along plane after annealing crystals; they ∼45 μm deep from groove 500 nm interval, thickness each lamella <100 nm. results suggest that precipitation laminated structure can be controlled nanogrooving-induced deformation.