Long-time strain aging responses of commercial dual-phase steels at room temperature

Güral A., Çavuşoğlu O., Şahin B., Altuntaş O., Yılmaz T.

Ironmaking and Steelmaking, vol.50, no.7, pp.705-709, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 7
  • Publication Date: 2023
  • Doi Number: 10.1080/03019233.2022.2156706
  • Journal Name: Ironmaking and Steelmaking
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.705-709
  • Keywords: Static strain aging, pre-strain, dual-phase steels, diffusion, mechanical properties, tensile, fracture, DP600
  • Gazi University Affiliated: Yes

Abstract

In this study, the effects of room temperature static strain aging period on the tensile properties of DP600 dual-phase steel were investigated. 6% and 12% of pre-strained DP600 steels were carried out static strain aging treatment at room temperature for up to 4 months. It was observed that with increasing both pre-strain rate and room temperature static aging period, the tensile strength values increased and ductility values decreased significantly. Also, dual-phase steels maintain the continuous yield behaviour which is general characteristic. The fracture surfaces exhibited a lower depth dimple type mode with increasing room temperature static strain aging period.