The ambient tensile deformation characteristics of copper subjected to the surface mechanical attrition treatment (SMAT) was investigated by means of the electron channeling contrast in scanning electron microscopy (SEM-ECC). It was found that during tensile the shear bands were the common deformation characteristics in nano-grained layer, submicro-grained layer and transition layer formed by dislocation cells. The morphology of the shear bands slightly varied in the surface layer with different structures. The shear bands both in nano-grained layer and submicro-grained layer were formed as a result of the shear sliding along a planar interface. The tensile deformation in transition layer mainly occurred in a scale of the original grains. The shear bands were formed basically according with the rule of crystallography.
|Original language||English (US)|
|Number of pages||6|
|Journal||Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research|
|State||Published - Oct 1 2005|
All Science Journal Classification (ASJC) codes
- Materials Science(all)