Skip to main content
SpringerLink
Log in

Composition Optimization of Nb-Ti Microalloyed High Strength Steel

  • Metallic materials
  • Published:
Journal of Wuhan University of Technology-Mater. Sci. Ed. Aims and scope Submit manuscript

Abstract

Four Nb-Ti microalloyed steels were refined and rolled to study the composition optimization of Nb-Ti microalloyed steels. The effects of Nb and Ti on the microstructures, precipitates and properties of Nb-Ti microalloyed steel were investigated. The results showed that an increase in Ti content resulted in the appearance of many fine precipitates leading to a strong precipitation strengthening effect. Hence, the yield strength increased. Besides, the increased strength by the combined increase of Nb and Ti was similar to that observed for the increase in Ti content alone. This increase in strength was attributed widely to the increase in the Ti content alone rather than Nb. Moreover, the increase in Nb content beyond 0.036 wt% exerted no significant effect on the strength of Ti-Nb microalloyed steels, in which more Ti could be added to further improve the strength of steels.

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. Liu D L, Fu J, Kang Y L. Oxide and Sulfide Dispersive Precipitation and Effects on Microstructure and Properties of Low Carbon Steels[J]. J. Mater. Sci. Technol., 2002, l8: 7–9

    Article  Google Scholar 

  2. Mao X.P. Microalloying Technology on Thin Slab Casting and Direct Rolling Process[M]. Beijing: Metallurgical Industry Press, 2008: 5–10

    Google Scholar 

  3. Peng Z W, Li L J, Gao J X, et al. Precipitation Strengthening of Titanium Microalloyed High-Strength Steel Plates with Isothermal Treatment[J]. Mater. Sci. Eng. A, 2016, 657: 413–421

    Article  Google Scholar 

  4. He K J, Baker T N. The Effects of Small Titanium Additions on the Mechanical Properties and the Microstructures of Controlled Rolled Niobium-Bearing HSLA Plate Steels[J]. Mater. Sci. Eng. A, 1993, 169: 53–65

    Article  Google Scholar 

  5. Moon J, Kim S, Lee J, et al. Limiting Austenite Grain Size of TiN-Containing Steel Considering the Critical Particle Size[J]. Scripta Mater., 2007, 56: 1083–1086

    Article  Google Scholar 

  6. Jia Z, Misra R D K, O’Malley R, et al. Fine-Scale Precipitation and Mechanical Properties of Thin Slab Processed Titanium–Niobium Bearing High Strength Steels[J]. Mater. Sci. Eng. A, 2011, 528: 7077–7083

    Article  Google Scholar 

  7. Misra R D K, Nathani H, Hartmann J E, et al. Microstructural Evolution in A New 770 MPa Hot Rolled Nb-Ti Microalloyed Steel[J]. Mater. Sci. Eng. A, 2005, 394: 339–352

    Article  Google Scholar 

  8. Charleux M, Poole W J, Militzer M, et al. Precipitation Behavior and Its Effect on Strengthening of an HSLA-Nb/Ti Steel[J]. Metall. Mater. Trans. A, 2001, 32: 1635–1647

    Article  Google Scholar 

  9. Hu Z W, Xu G, Yang H L, et al. The Effects of Cooling Mode on Precipitation and Mechanical Properties of A Ti-Nb Microalloyed Steel[J]. J. Mater. Eng. Perform., 2014, 23: 4216–4222

    Article  Google Scholar 

  10. Kostryzhev A G, Al Shahrani A, Zhu C, et al. Effect of Deformation Temperature on Niobium Clustering, Precipitation and Austenite Recrystallisation in A Nb–Ti Microalloyed Steel[J]. Mater. Sci. Eng. A, 2013, 581: 16–25

    Article  Google Scholar 

  11. Xu G, Gan X L, Ma G J, et al. The Development of Ti-Alloyed High Strength Microalloy Steel[J]. Mater. Design, 2010, 31: 2891–2896

    Article  Google Scholar 

  12. Li Y, Wilson J A, Crowther D N, et al. The Effects of Vanadium, (Nb, Ti) on the Microstructure and Mechanical Properties of Thin Slab Cast Steels[C]. International Symposium 2002 on Thin Slab Casting and Direct Rolling. Guangzhou: The Chinese Society for Metals, 2002, 59–64

    Google Scholar 

  13. Wang R Z, Carcia C I, Hua M, et al. Microstructure and Precipitation Behavior of Nb, Ti Complex Microalloyed Steel Produced by Compact Strip Processing[J]. ISIJ Int., 2006, 46: 1345–1353

    Article  Google Scholar 

  14. Deardo A J. Niobium in Modern Steels[J]. Int. Mater. Rev., 2003, 48: 371–402

    Article  Google Scholar 

  15. Misra R D K, Weatherly G C, Hartmann J E, et al. Ultrahigh Strength Hot Rolled Microalloyed Steels: Microstructural Aspects of Development[J]. Mater. Sci. Technol., 2001, 17: 1119

    Article  Google Scholar 

  16. Hong S G, Kang K B, Park C G. Strain-Induced Precipitation of NbC in Nb and Nb-Ti Microalloyed HSLA Steels[J]. Scripta Mater., 2002, 46: 163–168

    Article  Google Scholar 

  17. Pickering F B. Physical Metallurgy and the Design of Steels[M]. London: Applied Science Publishing Ltd., 1978

    Google Scholar 

  18. Yen H W, Chen P Y, Huang C Y, et al. Interphase Precipitation of Nanometer-Sized Carbides in A Titanium-Molybdenum-Bearing Low-Carbon Steel[J]. Acta Mater., 2011, 59: 6264–6274

    Article  Google Scholar 

  19. Gladman T. Precipitation Hardening in Metals [J]. Mater Sci Technol., 1999, 15: 30–36

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. The State Key Laboratory of Refractories and Metallurgy, Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China

    Xiaolong Gan  (甘晓龙), Guang Xu  (徐光), Gang Zhao, Mingxing Zhou & Zhen Cai

  2. Research and Development Center of Wuhan Iron and Steel (Group) Corp, Wuhan, 430080, China

    Xiaolong Gan  (甘晓龙) & Zhen Cai

Authors
  1. Xiaolong Gan  (甘晓龙)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Guang Xu  (徐光)
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Gang Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Mingxing Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Zhen Cai
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Guang Xu  (徐光).

Additional information

Funded by the Major Projects of Technology Innovation of Hubei Province (No.2017AAA116), the National Natural Science Foundation of China (NSFC) (Nos. 51274154, 51704217) and Hebei Joint Research Fund for Iron and Steel (No.E2018318013)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gan, X., Xu, G., Zhao, G. et al. Composition Optimization of Nb-Ti Microalloyed High Strength Steel. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 33, 1193–1197 (2018). https://doi.org/10.1007/s11595-018-1952-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11595-018-1952-3

Key words

Search

Navigation