TY  - SER
AU  - Lychagin,Dmitry V.
AU  - Chumaevskii,Andrey V.
AU  - Alfyorova,Ekaterina A.
AU  - Tarasov,Sergey Yu
ED  - Томский государственный университет
TI  - Macrosegmentation and strain hardening stages in copper single crystals under compression
KW  - монокристаллы
KW  - медь
KW  - деформация
KW  - дифракция
KW  - статьи в журналах
N2  - The surface deformation-induced pattern (relief) of copper single crystals with the orientation of the compression axis along [111] has been investigated by means of optical, scanning electron and atomic force microscopy. The misorientations between both macroscopic and mesoscopic areas in [111]-single crystals have been determined using the electron back scattering diffraction (EBSD) technique. The macroscopic reorientation has been revealed to rotate the crystalline lattice around the [110] axis. The single crystal has been divided into five macrosegments with their misorientations distributed along the compression axis in a manner that the deformation axis sequentially coincided with the crystallographic directions in the order [111]-[221]-[773]-[110]. Shear by unloaded plane (111) has been observed. The macrolevel deformation up to 25% has been developing as follows: shear by octahedral planes e development of macrobands e reorientation of the central zones e shear by unloaded octahedral plane in the reoriented zones. The steps of this sequence corresponded to the stages of the stress-strain curves
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000525913
ER  -