Analysis of deformation bands and cell structure in cyclically deformed near-[111] -oriented copper single crystals

摘要

In this study, we investigate the deformation bands (DBs), viz. DBI and DBII, and cell bands (CBs) in the near-[111] -multiple-slip-oriented single crystals during cyclic deformation. Three different types each of DBIs [(111), (111), and (111)] and DBIIs [(211), (121), and (112)] can be summarized as the primarily activated slip plane and the combination of activated primary and coplanar slip systems, respectively. The formation planes of CBs [(121), (112), and (211)] are perpendicular to the cross-slip plane and parallel to the primary slip direction. The highly symmetrical characteristics of multiple-slip-oriented single crystals can produce inconsistent correspondences between DBs and CBs.