Modifiing Effect of Zirconia Nanoparticles during Electric Arc Welding
- Autores: Fominykh M.1, Denisova E.1, Berezovskii A.1, Finkel’shtein A.1, Kartashev V.1
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Afiliações:
- Ural Federal University,
- Edição: Volume 2018, Nº 8 (2018)
- Páginas: 783-786
- Seção: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172088
- DOI: https://doi.org/10.1134/S0036029518080050
- ID: 172088
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Resumo
The structure of the weld metal after welding using a flux-cored wire with the addition of 0.3% zirconia flaky nanoparticles is studied. The weld consists of an acicular ferrite. This finding can indicate that the dissociation of zirconia in an electric arc is not an obstacle to a modifying effect, which manifests itself in both the interaction of zirconium with oxygen and the surface activity of zirconium in an iron-based solidifying melt. Thus, zirconia is a modifier of both the first and second kinds for the solidifying weld metal. Excess oxygen is likely to form individual pores less than 1 μm in diameter in the weld metal; however, they only wealy affect the mechanical properties of the welded joint. These results will be used to develop electrode materials for welding pipe steels.
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Sobre autores
M. Fominykh
Ural Federal University,
Email: avinkel@mail.ru
Rússia, Yekaterinburg, 620002
E. Denisova
Ural Federal University,
Email: avinkel@mail.ru
Rússia, Yekaterinburg, 620002
A. Berezovskii
Ural Federal University,
Email: avinkel@mail.ru
Rússia, Yekaterinburg, 620002
A. Finkel’shtein
Ural Federal University,
Autor responsável pela correspondência
Email: avinkel@mail.ru
Rússia, Yekaterinburg, 620002
V. Kartashev
Ural Federal University,
Email: avinkel@mail.ru
Rússia, Yekaterinburg, 620002
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