Estimation of the Corrosion Resistance of the Metal Coatings Formed by Powder Metallurgy

  • 4 Accesses


A method is suggested to restore the worn surfaces of the components of food-processing equipment, which operate in an aggressive medium and are subjected to corrosive mechanical wear, by electrocontact welding of metallic powders placed in metallic-network containers. A combined additive, which allows one to exclude the losses of adding powder, is used. The corrosion penetration depth in an aggressive medium for metal coatings with a cast-iron addition is studied experimentally.

This is a preview of subscription content, log in to check access.

Access options

Buy single article

Instant unlimited access to the full article PDF.

US$ 39.95

Price includes VAT for USA

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.


  1. 1

    R. A. Latypov, V. V. Bulychev, P. I. Burak, et al., Electrocontact Welding. Theory and Practice: Monograph (Univ. Kniga, Kursk, 2016).

  2. 2

    I. I. Zagirov, N. M. Yunusbaev, and I. R. Shakirov, “Efficient method for restoring components,” in Proceedings of All-Russia Theoretical and Practical Conference on Improvement of Construction, Operation, and Technical Service of Automotive and Farm Machinery (Izd. GBAU, Ufa, 2016), pp. 117–120.

  3. 3

    M. Z. Nafikov, A. Yu. Konnov, and M. N. Farkhshatov, “Combined additive for electrocontact facing,” Patent for Useful Model no. 157756, Byull. Izobret., No. 34 (2015).

  4. 4

    M. Z. Nafikov, R. S. Aipov, and A. Yu. Konnov, “Restoring components of food-processing equipment by powder metallurgy,” Elektrometallurgiya, No. 8, 17–25 (2017).

  5. 5

    A. P. Pavlov, R. N. Saifullin, and I. A. Rafikov, “Substantiation of conditions for electrocontact welding of steel networks upon restoring machine components,” Vestn. Bashkirskogo Gos. Univ., No. 1, 88–93 (2016).

  6. 6

    M. Z. Nafikov, A. Yu. Konnov, I. I. Zagirov, and N. M. Yunusbaev, “Method for determination of porosity of metal coating made from additive metallic powder,” RF Patent 2608859, Byull. Izobret., No. 1 (2017).

  7. 7

    A. G. Ignat’ev and A. A. Tret’yakov, “New method for measuring residual stresses in restored components in using cone indenter,” Kontrol. Diagnostika, No. 6, 26–30 (2015).

  8. 8

    R. F. Tukaev, M. V. Demchenko, and A. V. Sisanbaev, “Corrosion surface relief of welds prepared by electroarc and laser welding,” Khim. Fiz. Mezoskopiya 17 (3), 403–407 (2015).

Download references

Author information

Correspondence to A. Yu. Konnov.

Additional information

Translated by N. Kolchugina

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Konnov, A.Y., Demchenko, M.V., Sisanbaev, A.V. et al. Estimation of the Corrosion Resistance of the Metal Coatings Formed by Powder Metallurgy. Russ. Metall. 2019, 1285–1288 (2019).

Download citation


  • restoring
  • component
  • combined additive
  • electrocontact facing
  • corrosion
  • penetration depth