Strain limit of extra galvannealed Interstitial-Free and bake hardened steel sheets under different stress conditions

  • R NarayanasamyEmail author
  • N L Parthasarathi
  • R Ravindran
  • C Sathiya Narayanan


The formability of bake hardened steel (thickness 0.82 mm), and the extra galvannealed IF steel (thickness 0.82 mm) have been studied. The suitability of the above steels for forming applications has been critically examined. The microstructure, tensile properties, and formability parameters of the above sheet metals were determined. The manufacturing process of the steels and the significance with reference to its formability were studied.

Key words

bake hardened steel extra galvannealed IF steel microstructure forming limit diagram tensile parameter 


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Copyright information

© China Iron and Steel Research Institute Group 2008

Authors and Affiliations

  • R Narayanasamy
    • 1
    Email author
  • N L Parthasarathi
    • 1
  • R Ravindran
    • 1
  • C Sathiya Narayanan
    • 1
  1. 1.Department of Production EngineeringNational Institute of TechnologyTiruchirappalli, TamilnaduIndia

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