Skip to main content
SpringerLink
Log in

Effect of Boric Acid Concentration on Viscosity of Slag and Property of Weld Metal Obtained from Underwater Wet Welding

  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

Underwater wet welding is a crucial repair and maintenance technology for nuclear plant. A boric acid environment raises a new challenge for the underwater welding maintenance of nuclear plant. This paper places emphasis on studying the influence of a boric acid environment in nuclear plant on the underwater welding process. Several groups of underwater wet welding experiments have been conducted in boric acid aqueous solution with different concentration (0-35000 ppm). The viscosity of the welding slag and the mechanical properties of welds, such as the hardness, strength, and elongation, have been studied. The results show that with increasing boric acid concentration, the viscosity of the slag decreases first and then increases at a lower temperature (less than 1441 °C). However, when the temperature is above 1480 °C, the differences between the viscosity measurements become less pronounced, and the viscosity tends to a constant value. The hardness and ductility of the joints can be enhanced significantly, and the maximum strength of the weld metal can be reached at 2300 ppm.

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
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. H.T. Wang, G.Z. Wang, F.Z. Xuan, and S.T. Tu, Fracture Mechanism of a Dissimilar Metal Welded Joint in Nuclear Power Plant, Eng. Fail. Anal., 2013, 28, p 134–148

    Article  Google Scholar 

  2. M.K. Samal, M. Seidenfuss, E. Roos, and K. Balani, Investigation of Failure Behavior of Ferritic-Austenitic Type of Dissimilar Steel Welded Joints, Eng. Fail. Anal., 2011, 18, p 999–1008

    Article  Google Scholar 

  3. S.J. Yang and C.Y. Park, Estimates of Mechanical Properties and Residual Stress of Narrow Gap Weld for Leak-Before-Break Application to Nuclear Piping, J. Press. Vessels Trans. Asme., 2011, 133, p 021403–021409

    Article  Google Scholar 

  4. N. Yurioka and Y. Horii, Recent Developments in Repair Welding Technologies in Japan, Sci. Techonl. Weld. Join., 2006, 11, p 255–264

    Article  Google Scholar 

  5. X.F. Liang, H. Yi, Y.F. Zhang, and D. Li, Reliability and Safety Analysis of an Underwater Dry Maintenance Cabin, China Ocean Eng., 2010, 37, p 268–276

    Article  Google Scholar 

  6. J.M. Verbeke, K.N. Leung, and J.D. Vujic, Development of a Sealed-Accelerator-Tube Neutron Generator, Appl. Radiat. Isotopes S., 2000, 53, p 801–809

    Article  Google Scholar 

  7. C.A. Campbell, S. Fyfitch, and D.T. Martin, Boric Acid Corrosion of Carbon and Low Alloy Steels, Corrosion/94 Conference Papers, 1994

  8. B. Cox and C. Wu, Transient Effects of Lithium Hydroxide and Boric Acid on Zircaloy Corrosion, J. Nucl. Mater., 1995, 224, p 168–178

    Google Scholar 

  9. M. Rowe and S. Liu, Recent Developments in Underwater Wet Welding, Weld. J., 2001, 6, p 387–396

    Article  Google Scholar 

  10. I. Sohn and D.J. Min, A Review of the Relationship Between Viscosity and the Structure of Calcium-Silicate-Based Slags in Ironmaking, Steel Res. Int., 2012, 83, p 611–630

    Article  Google Scholar 

  11. B.O. Mysen, D. Virgo, and C.M. Scarfe, Relations Between the Anionic Structure and Viscosity of Silicate Melts a Raman Spectroscopic Study, Am. Mineral., 1980, 65, p 690–710

    Google Scholar 

  12. J.B. Kim and I. Sohn, Influence of TiO2/SiO2 and MnO on the Viscosity and Structure in the TiO2-MnO-SiO2 Welding Flux System, J. Non-Cryst. Solids, 2013, 379, p 235–243

    Article  Google Scholar 

  13. Y. Morizane, B. Ozturk, and R.J. Fruehan, Thermodynamics of TiOx in Blast Furnace-Type Slags, Metall. Mater. Trans., 1999, 30, p 29–43

    Article  Google Scholar 

  14. G. Handfield and G.G. Charette, Viscosity and Structure of Industrial High TiO2 Slags, Can. Metall. Q., 1971, 3, p 235–243

    Article  Google Scholar 

  15. V.R. Santos, M.J. Monteiro, and F.C. Rizzo, Development of an Oxyrutile Electorde for Wet Welding, Weld. J., 2012, 91, p 319–328

    Google Scholar 

  16. T.G. Gooch, Properties of Underwater Welds Part 1 Procedural Trials, Met. Constr., 1983, 3, p 164–167

    Google Scholar 

  17. X. Long, S.P. He, and J.F. Xu, Effects of Crystallization Behaviour of Mould Fluxes on Properties of Liquid Slag Film, J. Iron. Steel Res. Int., 2012, 19, p 39–45

    Article  Google Scholar 

  18. S. Kim, Y. Kang, and C. Lee, Variation in Microstructures and Mechanical Properties in the Coarse-Grained Heat-Affected Zone of Low-Alloy Steel with Boron Content, Mater. Sci. Eng., 2013, 559, p 178–186

    Article  Google Scholar 

  19. D. Anjana and K.D. Saikat, Strain Hardening Behavior and Cold Reducibility of Boron-Added Low-Carbon Steel, J. Mater. Eng. Perform., 2009, 18, p 109–110

    Article  Google Scholar 

Download references

Acknowledgment

We are grateful for the financial support to this study from the State Key Development Program for Basic Research of China (Grant No. 2013CB035502), the Shandong Provincial Science and Technology Development Plan (Grant No. 2014GGX103033), and Postdoctoral Science Foundation of China (Grant No. 2014M561343).

Author information

Authors and Affiliations

  1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150000, China

    Ning Guo & Jicai Feng

  2. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, No. 2 Wenhuaxi Road, Weihai, 264209, China

    Ning Guo, Wei Guo, Changsheng Xu, Yongpeng Du & Jicai Feng

Authors
  1. Ning Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Wei Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Changsheng Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yongpeng Du
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Jicai Feng
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ning Guo.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Guo, N., Guo, W., Xu, C. et al. Effect of Boric Acid Concentration on Viscosity of Slag and Property of Weld Metal Obtained from Underwater Wet Welding. J. of Materi Eng and Perform 24, 2563–2568 (2015). https://doi.org/10.1007/s11665-015-1528-8

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11665-015-1528-8

Keywords

Search

Navigation