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A study on flow behavior of A-286 superalloy during hot deformation

Salehi, A. R ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matchemphys.2006.03.012
  3. Publisher: 2007
  4. Abstract:
  5. The hot deformation behavior of A-286 superalloy has been characterized using hot compression experiments in the temperatures between 1000 and 1100 °C and strain rates varying between 0.001 and 0.1 s-1. In addition, hot workability of this alloy has been analyzed by employing flow-localization parameter. The results show that both kinds of softening mechanism, dynamic recovery and dynamic recrystallization, occur during hot working, where at 1000 °C the main mechanism is dynamic recovery and at higher temperatures and strain rate of 0.001-0.01 s-1 dynamic recrystallization takes place. Calculations demonstrates that this alloy mainly have a good workability for the utilized deformation conditions however, at temperatures around 1050 °C critical conditions may be raised and flow localized region could be formed. © 2006 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Deformation ; Hot pressing ; Recrystallization (metallurgy) ; Strain rate ; Thermal effects ; Dynamic recrystallization ; Flow localization parameters ; Hot deformations ; Workability ; Superalloys
  8. Source: Materials Chemistry and Physics ; Volume 101, Issue 1 , 2007 , Pages 153-157 ; 02540584 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S025405840600109X