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Flow behavior and mechanical properties of a high silicon steel associated with dynamic strain aging

Akhgar, J. M ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1007/s11665-011-0106-y
  3. Publisher: Springer , 2012
  4. Abstract:
  5. Flow behavior of two grades of steel including a high silicon (HS) steel and a plain low carbon steel as the reference were considered in this work. Tensile testing at temperatures varying between 25 and 550 °C and different strain rates in the range of 4×10-5 to 0.1 s-1 were conducted and the mechanical properties, such as elongation at fracture point and strain rate sensitivity were then determined. It is observed that for both steels, dynamic strain aging occurs in the employed deformation conditions, however, the region of serrated flow and the type of the serration were somehow different. For the case of the HS steel, the serrated flow region is shifted to the higher temperatures and also, the activation energy for appearance of dynamic strain aging increases as well
  6. Keywords:
  7. Deformation conditions ; Dynamic strain aging ; Flow behaviors ; High-silicon steel ; Serrated flow ; Strain rate sensitivity ; Tensile tests ; Activation energy ; Mechanical properties ; Strain rate ; Tensile testing ; Silicon steel
  8. Source: Journal of Materials Engineering and Performance ; Volume 21, Issue 9 , September , 2012 , Pages 1919-1923 ; 10599495 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs11665-011-0106-y