期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 19, 期 -, 页码 S409-S413出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(10)60079-9
关键词
commercially pure titanium; anisotropy; lamellar microstructure; electropulsing treatment
The specimens cut from the cold-rolled pure titanium sheet at 0 degrees, 45 degrees and 90 degrees to the rolling direction were treated by high density electropulsing (maximum current density J=(7.22-7.96)x 10(3) A/mm(2), pulse period t(p)=110 mu s). 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 degrees, 45 degrees and 90 degrees 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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