Journal of Materials Science

, Volume 28, Issue 7, pp 1814–1818 | Cite as

The relationship between ductility and material parameters for dual-phase steel

  • Zhonghao Jiang
  • Zhenzhong Guan
  • Jianshe Lian


A modified Crussard-Jaoul analysis has been employed to describe the strain hardening behaviour (the ln(dσ/dε) versus In σ curves) of a 1020 dual-phase steel with quenching and quenching+tempering treatments and with different predeformations, which demonstrated that this dual-phase steel exhibits two stages of strain-hardening in the range of plastic deformation. An analysis of instability for dual-phase steel is also presented and the relationship between the maximum uniform strain and the material parameters is proposed, which shows good agreement with the experimental results for the present 1020 dual-phase steel and other dual-phase steels.


Polymer Plastic Deformation Ductility Strain Hardening Material Parameter 
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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • Zhonghao Jiang
    • 1
  • Zhenzhong Guan
    • 1
    • 2
  • Jianshe Lian
    • 1
  1. 1.Department of Metal Materials EngineeringJilin University of TechnologyChangchunPeople’s Republic of China
  2. 2.Changchun Institute of Optics and Fine MechanicsChinese Academy of SciencesChangchunPeople’s Republic of China

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