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Modeling of hardening and fracture behavior in Gr.65 steel after intercritical heat treatments

  • Kuan Ma , Jun Yang , Wen Li , Fang F. Liao , Yong H. Song , Xiao L. Xie and De N. Zou
Published/Copyright: July 31, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 8

Abstract

For high strength low alloys, intercritical heat treatment processes are usually used to obtain the dual phase steel. In this work, a micro–macroscopic model was developed for describing the hardening and fracture behavior of such steels after the heat treatments. In the microscopic model, a description of flow curves was established based on a 2D representative volume element from a real microstructure, whereas in the macroscopic model, the Gurson–Tveergard–Needleman approach was used to simulate the failure process. Furthermore, the simulation flow curves and true stress–strain curves were compared with the experimental observations. The results demonstrate that such a multiscale model can accurately predict the work hardening and fracture behavior of steels after the intercritical heat treatments.

Keywords: Intercritical heat treatment; HSLA steel; DP steel; 2D RVE; Micro–macroscopic model; GTN
*Correspondence address, Jun Yang, School of Metallurgical Engineering, Xi'an University of Architecture and Technology, P.R. China
**Wen Li, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Hangzhou West Street, Huangshi City 435003, P.R. China, Tel.: +86-714-984-034, Fax: +86-714-984-642, E-mail:

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Received: 2017-02-11
Accepted: 2017-04-24
Published Online: 2017-07-31
Published in Print: 2017-08-11

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111522
Keywords for this article
Intercritical heat treatment; HSLA steel; DP steel; 2D RVE; Micro–macroscopic model; GTN

Articles in the same Issue

  1. Contents
  2. Contents
  3. Review
  4. Current developments of biomedical porous Ti–Mo alloys
  5. Original Contributions
  6. Investigation of crystallization kinetics and deformation behavior in supercooled liquid region of CuZr-based bulk metallic glass
  7. Modeling of hardening and fracture behavior in Gr.65 steel after intercritical heat treatments
  8. Time evolution of agglomerate size of semisolid magnesium alloy AZ91D during a real isothermal shearing
  9. Effect of stirring speed on microstructure of A356 alloy cast through rheometal process
  10. Phase equilibria of the Mo–Al–Ho ternary system
  11. Experimental investigation of phase equilibria in the Zr–Cu–Ni ternary system
  12. Hot corrosion of the ceramic composite coating Ni3Al–Al2O3–Al2O3/MgO plasma sprayed on 316L stainless steel
  13. Tribological properties of B4C–TiB2–TiC–Ni cermet coating produced by HVOF
  14. Electrochemically fabricated Fe–Ni alloy nanowires and their structural characterization
  15. Short Communications
  16. Synthesis and growth mechanisms of ZrC whiskers fabricated by a VLS process
  17. DGM News
  18. DGM News
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