Abstract
The specimens cut from the cold-rolled pure titanium sheet at 0°, 45° and 90° to the rolling direction were treated by high density electropulsing (maximum current density J=(7.22–7.96)×10 3 A/mm 2, pulse period t p=110 μs). The mechanical properties and microstructures of the cold-rolled, electropulsed and conventional annealed commercially pure titanium sheet were examined by using uniaxial tension test machine and optical microscope (OM), respectively. The results show that the deformation behavior of the electropulsed pure titanium sheet is significantly different from that of conventional annealed pure titanium sheet. The difference of the mechanical properties between the 0°, 45° and 90° direction specimens is almost diminished. It is mainly due to the increase in dislocation mobility and formation of lamellar microstructure after the electropulsing.
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