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Effect of austenitising and deformation temperatures on dynamic recrystallisation in Nb-Ti microalloyed steel

Journal Article


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Abstract


  • An investigation into influence of the austenitising temperature and the austenite deformation temperature on Nb precipitation and recrystallisation kinetics was carried out for a steel containing 0.081C-0.021Ti-0.064Nb (wt. %). The austenite grain structure was correlated to the dispersive properties of Nb atom clustering and precipitation. Irrespective of the austenitising temperature, deformation to 0.75 strain at 1075 °C produced a fully recrystallised microstructure. After deformation at 975 °C, only partial recrystallisation was observed in the samples austenitised at higher temperature, whereas samples austenitised at lower temperature were fully recrystallised. The influence of solute drag and particle pinning effects on the recrystallisation rate is discussed.

Authors


  •   Kostryzhev, Andrew (external author)
  •   Al shahrani, Abdullah (external author)
  •   Zhu, Chen (external author)
  •   Ringer, Simon Peter. (external author)
  •   Pereloma, Elena V.

Publication Date


  • 2013

Citation


  • Kostryzhev, A. G., Al Shahrani, A., Zhu, C., Ringer, S. P. & Pereloma, E. V. (2013). Effect of austenitising and deformation temperatures on dynamic recrystallisation in Nb-Ti microalloyed steel. Materials Science Forum, 753 431-434.

Scopus Eid


  • 2-s2.0-84876543005

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2282&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1273

Number Of Pages


  • 3

Start Page


  • 431

End Page


  • 434

Volume


  • 753

Abstract


  • An investigation into influence of the austenitising temperature and the austenite deformation temperature on Nb precipitation and recrystallisation kinetics was carried out for a steel containing 0.081C-0.021Ti-0.064Nb (wt. %). The austenite grain structure was correlated to the dispersive properties of Nb atom clustering and precipitation. Irrespective of the austenitising temperature, deformation to 0.75 strain at 1075 °C produced a fully recrystallised microstructure. After deformation at 975 °C, only partial recrystallisation was observed in the samples austenitised at higher temperature, whereas samples austenitised at lower temperature were fully recrystallised. The influence of solute drag and particle pinning effects on the recrystallisation rate is discussed.

Authors


  •   Kostryzhev, Andrew (external author)
  •   Al shahrani, Abdullah (external author)
  •   Zhu, Chen (external author)
  •   Ringer, Simon Peter. (external author)
  •   Pereloma, Elena V.

Publication Date


  • 2013

Citation


  • Kostryzhev, A. G., Al Shahrani, A., Zhu, C., Ringer, S. P. & Pereloma, E. V. (2013). Effect of austenitising and deformation temperatures on dynamic recrystallisation in Nb-Ti microalloyed steel. Materials Science Forum, 753 431-434.

Scopus Eid


  • 2-s2.0-84876543005

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2282&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1273

Number Of Pages


  • 3

Start Page


  • 431

End Page


  • 434

Volume


  • 753