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Comparison of the effects of fluorides in rutile-type flux cored wire

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Abstract

Various fluorides, CaF2, Na3AlF6, K2SiF6, MnF3, and MgF2, were added to rutile-type flux cored wires at concentrations of 1.8–2.3% and their effects on hydrogen reduction in weld metals were studied. All the fluorides reduced the hydrogen content but there were differences in the levels of reduction among the wires; CaF2 showed the greatest reduction and MnF3 showed the least. The hydrogen content in the weld metals was not influenced by the fluorine formed in the arc but by the slag basicity due to the small amount of fluorides added. The weld metal with higher slag basicities had a lower hydrogen content. The effects of fluorides on the arc stability, weld metal hardness, and microstructure were also examined. Because of the higher ionization potential of Mn, the wire containing MnF3 had the most unstable arc during welding. The wire containing MnF3 also produced a lower weld metal hardness than the other wires owing to its lower weld metal hardenability due to the greater oxidation loss of the C, Si, and Mn elements during welding.

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References

  1. I. K. Pokhodnya, Proc. Conf. on Hydrogen Management in Steel Weldments, p.145, Welding Technology Institute of Australia, Melbourne, Au (1996).

    Google Scholar 

  2. M. Matsushita and S. Liu, Weld. J. 79, 296s (2000).

    Google Scholar 

  3. J. Du Plessis, M. Du Toit and P. C. Pistorius, IIW Doc II-1590-06.

  4. M. Sierdzinski and S. Ferree, Weld. J. 77, 45 (1998).

    CAS  Google Scholar 

  5. W. Mazur, Proc. 7th Int. Conf. on Trends in Welding Research, p. 507, ASM Int’l, Pine Mountain, Ga (2005).

    Google Scholar 

  6. AWS A4.3-86, Standard Methods for Determination of the Diffusible Hydrogen Content of Martensitic, Bainitic, and Ferritic Weld metal Produced by Arc Welding, AWS, Miami, Fla.

  7. J. Tsuboi and H. Terashima, J. Jpn. Weld. Soc. 42, 545 (1973).

    Google Scholar 

  8. H. Terashima and J. Tsuboi, J. Jpn. Weld. Soc. 45, 543 (1976).

    Google Scholar 

  9. N. De Rissone, I. Bott, J. Jeorge, P. Corvalan and E. Surian, Weld. J. 76, 498s (1997).

    Google Scholar 

  10. S. Tuliani, T. Boniszweski and N. Eaton, Welding Met. Fab. 37, 327 (1969).

    CAS  Google Scholar 

  11. N. De Rissone, E. Surian, R. Conde and L. De Vedia, Sci. Technol. Weld. Join. 6, 323 (2001).

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Division of Advanced Materials Science and Engineering, Pukyong National University, Yongdang-dong, Nam-gu, Busan, 608-739, Korea

    Kook-soo Bang

  2. Technical Research Laboratories, POSCO, Goedong-dong, Nam-gu, Pohang-si, Gyeongbuk, 790-785, Korea

    Hong-chul Jung & Il-wook Han

Authors
  1. Kook-soo Bang
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  2. Hong-chul Jung
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  3. Il-wook Han
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Correspondence to Kook-soo Bang.

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Bang, Ks., Jung, Hc. & Han, Iw. Comparison of the effects of fluorides in rutile-type flux cored wire. Met. Mater. Int. 16, 489–494 (2010). https://doi.org/10.1007/s12540-010-0622-6

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  • DOI: https://doi.org/10.1007/s12540-010-0622-6

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