Skip to main content
SpringerLink
Log in

Investigation of the Microstructure of Laser-Arc Hybrid Welded Boron Steel

  • Characterization of Advanced High Strength Steels for Automobiles
  • Published:
JOM Aims and scope Submit manuscript

Abstract

The microstructure of boron steel for automotive driving shaft manufacturing after laser-arc hybrid welding was investigated. Laser-arc hybrid welding technology was applied to 3-mm-thick plates of boron steel, ST35MnB. The temperature distribution of the welding pool was analyzed using the finite element method, and the microstructure of the welded boron steel was characterized using optical microscopy and scanning and transmission electron microscopies. The microstructure of the weld joint was classified into the fusion zone, the heat-affected zone (HAZ), and the base material. At the fusion zone, the bainite grains exist in the martensite matrix and show directionality because of heat input from the welding. The HAZ is composed of smaller grains, and the hardness of the HAZ is greater than that of the fusion zone. We discuss that the measured grain size and the hardness of the HAZ originate from undissolved precipitates that retard the grain growth of austenite.

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

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. E. Le Guen, R. Fabbro, M. Carin, F. Coste, and P. Le Masson, Opt. Laser Technol. 43, 1155 (2011).

    Article  Google Scholar 

  2. J. Tusek and M. Suban, Sci. Technol. Weld. Join. 4, 308 (2013).

    Article  Google Scholar 

  3. H.J. Jun, J.S. Kang, D.H. Seo, K.B. Kang, and C.G. Park, Mater. Sci. Eng. A 422, 157 (2006).

    Article  Google Scholar 

  4. Ph Maitrepierre, D. Thivellier, and R. Tricot, Metall. Trans. A 6, 287 (1975).

    Article  Google Scholar 

  5. S. Zhang, X. He, Y. Chu, and T. Ko, J. Mater. Sci. 29, 2633 (1994).

    Article  Google Scholar 

  6. R.G. Faulkner, J. Mater. Sci. 16, 373 (1981).

    Article  Google Scholar 

  7. J.A. Juarezislas, R. Perez, J.L. Albarran, O. Flores, and L. Martinez, Mater. Lett. 21, 197 (1994).

    Article  Google Scholar 

  8. L. Lan, C. Qiu, P. Zhou, D. Zhao, C. Li, X. Gao, and L. Du, Acta Metall. Sin. (Engl. Lett.) 24, 473 (2011).

    Google Scholar 

  9. Z. Wang, X. Sun, Z. Yang, Q. Yong, C. Zhang, Z. Li, and Y. Weng, Mater. Sci. Eng. A 573, 84 (2013).

    Article  Google Scholar 

  10. H.W. Yen, C.Y. Huang, and J.R. Yang, Scr. Mater. 61, 616 (2009).

    Article  Google Scholar 

  11. C.Y. Chen, H.W. Yen, F.H. Kao, W.C. Li, C.Y. Huang, J.R. Yang, and S.H. Wang, Mater. Sci. Eng. A 499, 162 (2009).

    Article  Google Scholar 

  12. S. Zhen, Z. Duan, D. Sun, Y. Li, D. Gao, and H. Li, Opt. Laser Technol. 59, 11 (2014).

    Article  Google Scholar 

  13. M. Gao, X. Zeng, J. Yan, and Q. Hu, Appl. Surf. Sci. 254, 5715 (2008).

    Article  Google Scholar 

Download references

Acknowledgements

This work was support by the Industrial Strategic Technology Development Program No. 10048332, “Development of forming technology for lightweight integrated drive shaft assembly using variable cross-section tube” funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea).

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea

    Seungwoo Son & Zonghoon Lee

  2. Department of Mechanical Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea

    Young Ho Lee & Youngseog Lee

  3. Materials Deformation Department, Korea Institute of Materials Science, Changwon, Gyeongnam, 51508, Republic of Korea

    Seong-Hoon Kang

  4. Sungwoo Hitech Co., Ltd, Yangsan, Gyeongnam, 50511, Republic of Korea

    Dong-Won Choi & Kuk-Rae Cho

  5. Korea Flange Co., Ltd, Ulsan, 44007, Republic of Korea

    Seung Man Shin

Authors
  1. Seungwoo Son
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Young Ho Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Dong-Won Choi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Kuk-Rae Cho
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Seung Man Shin
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Youngseog Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Seong-Hoon Kang
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Zonghoon Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zonghoon Lee.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (PDF 188 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Son, S., Lee, Y.H., Choi, DW. et al. Investigation of the Microstructure of Laser-Arc Hybrid Welded Boron Steel. JOM 70, 1548–1553 (2018). https://doi.org/10.1007/s11837-018-2876-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11837-018-2876-2

Search

Navigation