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Volume 14 Issue 6
Dec.  2007
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Zhenhua Li and Xianhua Cheng, Deformation temperature and postdeformation annealing effects on severely deformed TiNi alloy by equal channel angular extrusion, J. Univ. Sci. Technol. Beijing, 14(2007), No. 6, pp. 533-537. https://doi.org/10.1016/S1005-8850(07)60123-6
Cite this article as:
Zhenhua Li and Xianhua Cheng, Deformation temperature and postdeformation annealing effects on severely deformed TiNi alloy by equal channel angular extrusion, J. Univ. Sci. Technol. Beijing, 14(2007), No. 6, pp. 533-537. https://doi.org/10.1016/S1005-8850(07)60123-6
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Materials

Deformation temperature and postdeformation annealing effects on severely deformed TiNi alloy by equal channel angular extrusion

  • 通讯作者:

    Xianhua Cheng    E-mail: xhcheng@sjtu.edu.cn

  • Micron TiNi alloy blocks were fabricated at high temperature by equal channel angular extrusion (ECAE) using hotforged Ti-50.3at%Ni alloy as the raw material and the effects of deformation temperature and postdeformation annealing on the severely deformed TiNi alloy by ECAE were investigated. The results show that the TiNi alloy processed by ECAE undergoes severe plastic deformation, and lowering the deformation temperature and increasing the number of extrusions contribute to grain refinement. When the annealing temperature is below 873 K, static recovery is the main restoration process; when the temperature rises to 973 K, static recrystallization occurs. It is found that fine particles are precipitated when the TiNi alloy processed by ECAE is annealed at 773 K.
  • Materials

    Deformation temperature and postdeformation annealing effects on severely deformed TiNi alloy by equal channel angular extrusion

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