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Influence of Strip Cooling Rate on Lüders Bands Appearance During Subsequent Cold Deformation

  • Rešković StojaEmail author
  • Brlić Tin
  • Jandrlić Ivan
  • Vodopivec Franc
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 76)

Abstract

This paper presents the results of study of Lüders bands appearance on hot rolled strip during cold deformation. The research was carried out on niobium microalloyed steel. After the thermomechanical treatment the strip was cooled at different rates. Samples taken from hot rolled strip were tested by stretching to fracture with simultaneous application of the methods thermography and digital image correlation. The analysis of measurement results was performed with the software packages IRBIS 3 professional and MatchID. Significant differences were found in the samples tested at different cooling rates. In the samples cooled at a lower cooling rate, the appearance of Lüders bands in the elastoplastic area was determined. The appearance of Lüders bands was not observed in the samples cooled at a higher rates.

Keywords

Lüders band Microalloyed steel Hot rolled strip Cooling rate 

Notes

Acknowledgment

This work has been fully supported by Croatian Science Foundation under the project IP-2016-06-1270.

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Rešković Stoja
    • 1
    Email author
  • Brlić Tin
    • 1
  • Jandrlić Ivan
    • 1
  • Vodopivec Franc
    • 2
  1. 1.Faculty of MetallurgyUniversity of ZagrebSisakCroatia
  2. 2.Institute of Metals and TechnologyLjubljanaSlovenia

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