Skip to main content
SpringerLink
Log in

Analysis of microstructure characteristics and precipitation behavior of automobile beam steels produced by compact strip production

  • Published:
Journal of Iron and Steel Research International Aims and scope Submit manuscript

Abstract

The microstructure characteristics and precipitation behavior of automobile beam steels produced by compact strip production (CSP) were investigated by use of scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray energy dispersive spectroscopy. The result shows that the final microstructure is mainly composed of polygonal ferrite and small amount of pearlite, and the average ferrite grain size is about 3–6 μm. Small amount addition Ti to aluminium-killed steel can help to refine (the microstructure and improve the mechanical properties. A large number of fine precipitates have been observed in automobile beam steels. The mean particle size is about 10—30 nm. Remarkable strengthening and grain refinement can be obtained by these nano-particles.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Flemming G, Hensger K. Extension of Product Range and Perspectives of CSP Technology [J]. MPT Inter, 2000(1): 54.

  2. Yu H, Ren H, Kang Y L. Carbon Diffusion in Hot Strips of Low Carbon Steel Produced by CSP Line Under Different Thermal Histories [J]. J Mater Sci Technol, 2005, 21(1): 21.

    Google Scholar 

  3. Kang Y L, Yu H, Fu J. Morphology and Precipitation Kinetics of A1N in Hot Strip of Low Carbon Steel Produced by Compact Strip Production [J]. Mater Sci Eng, 2003(351): 265.

  4. Yu H, Kang Y L, Wang K L. Study of Mechanism on Micro-structure Refinement During Compact Strip Production Process [J]. Mater Sci Eng, 2003(363): 86.

  5. Gardiola B, Humbert M, Esling C. Determination and Prediction of the Inherited Ferrite Texture in a HSLA Steel Produced by Compact Strip Production [J]. Mater Sci Eng, 2001(303): 60.

  6. Humbert M, Gardiola B, Esling C. Modeling of the Variant Selection Mechanism in the Phase Transformation of HSLA Steel Produced by Compact Strip Production [J]. Acta Mater, 2002, 50: 1741.

    Article  Google Scholar 

  7. Yu H, Kang Y L, Xiong X Y. Quantitative Analysis on Strengthening Mechanism of Ultra-Thin Hot Strip of Low Carbon Steel Produced by CSP Technique [J]. J Univ Sci Technol Beijing, 2004, 11(5): 425.

    Google Scholar 

  8. Kang Y L, Wang K L, Yu H. Microstructure Evolution and Precipitation Behavior of Low Carbon Steel Hot Strips Produced by CSP [J]. J Univ Sci Technol Beijing, 2004, 11(4): 364.

    Google Scholar 

  9. Kunishige K, Nagao N. Strengthening and Toughening of Hot-Direct-Rolled Steels by Addition of a Small Amount of Titanium [J]. ISIJ Int, 1989, 29(11): 940.

    Article  Google Scholar 

  10. Bai M Z, Liu D L, Lou Y Z. Effects of Ti Addition on Low Carbon Hot Strips Produced by CSP Process [J]. J Univ Sci Technol Beijing, 2006, 13(3): 230.

    Article  Google Scholar 

  11. Zhang L, Yang W Y, Zheng W W. Carbides/Nitrides Precipitates in a C-Mn Strip by CSP Technology [J]. J Univ Sci Technol Beijing, 2005, 12(6): 517.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Metallurgical Engineering Research Institute, University of Science and Technology Beijing, 100083, Beijing, China

    Zheng-zhi Zhao (Doctor) & Ai-min Zhao

  2. Shougang Research Institute of Technology, 100041, Beijing, China

    Jie Liu

  3. School of Materials Science and Engineering, University of Science and Technology Beijing, 100083, Beijing, China

    Ai-min Zhao

Authors
  1. Zheng-zhi Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jie Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Ai-min Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zheng-zhi Zhao.

Additional information

Foundation Item: Item Sponsored by National Science and Technology Support Program for 11th Five-Year Plan of China (2006BAE03A06)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhao, Zz., Liu, J. & Zhao, Am. Analysis of microstructure characteristics and precipitation behavior of automobile beam steels produced by compact strip production. J. Iron Steel Res. Int. 17, 56–61 (2010). https://doi.org/10.1016/S1006-706X(10)60073-8

Download citation

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1016/S1006-706X(10)60073-8

Key words

Search

Navigation