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The effect of carbon on the restoration phenomena during hot deformation of carbon steels

Serajzadeh, S ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1515/ijmr-2003-0163
  3. Publisher: Walter de Gruyter GmbH , 2022
  4. Abstract:
  5. A study has been made to determine the influence of the carbon content on the kinetics of dynamic and static recrystallization during and after hot deformation of carbon steels. For this purpose, single- and double-hit hot compression experiments at various strain rates and temperatures together with the Avrami-type kinetics equation and Bergstrom approach have been utilized to investigate recrystallization behavior. The results show that the apparent activation energy of hot deformation decreases with increasing carbon content and this phenomenon results in a faster dynamic recrystallization at high temperatures and/or low strain rates. Also, increasing carbon content leads to a higher rate of static recrystallization at low strain rates while at high strain rates it causes a slower kinetics of static recrystallization. © 2003 Carl Hanser Verlag, München
  6. Keywords:
  7. Hot compression test ; Activation energy ; Compression testing ; Deformation ; Dynamic recrystallization ; Kinetics ; Strain rate ; Carbon content ; Compression experiments ; Dynamic and static recrystallization ; Effect of carbons ; Hot-compression tests ; Low strain rates ; Phases transformation ; Static recrystallization ; Strain-rates ; Strain-temperature ; Carbon steel ; Phase transformation
  8. Source: International Journal of Materials Research ; Volume 94, Issue 8 , 2022 , Pages 916-921 ; 18625282 (ISSN)
  9. URL: https://www.degruyter.com/document/doi/10.1515/ijmr-2003-0163/html?lang=en