Advertisement

Russian Metallurgy (Metally)

, Volume 2019, Issue 13, pp 1502–1509 | Cite as

Near-Surface Layer during the Heterogeneous Heterophase Oxidation of Metals and Alloys and the Related Chemical and Technological Aspects

  • S. D. PozhidaevaEmail author
  • A. M. Ivanov
PHYSICAL METALLURGY. THERMAL AND THERMOCHEMICAL TREATMENT TECHNOLOGIES

Abstract

In many cases, when metals and alloys are oxidized under the continuous regeneration of the direct oxidant taken in the amounts comparable with catalytic amounts, the near-surface layer of surface deposits of the products of oxidation of the metal and the reduction of the oxidant of the metal can be considered as a local zone of the macrocyclic stage of regeneration of the oxidant of the metal. The transfer of this stage to the volume phase is admissible and sometimes reasonable if the product of the reduction of the direct oxidant of the metal is soluble in the volume phase to a sufficient extent and the metal oxide is almost insoluble in the volume phase, where the metal exists in a higher oxidation state, or metal peroxide is used as an oxidant. If the indicated solubility of the reduction product of the primary oxidant of the metal is too low or entirely absent, its transfer to the volume phase due to the mechanical failure of the near-surface layer results in progressive self-retardation and also, in many cases, in the nearly entire termination of the oxidation process. The facts of the presence and mechanical failure of the near-surface layer on the metal and alloy favorable from the viewpoint of chemistry and technology are considered.

Keywords:

metal alloy oxidation oxidant of metal oxidant of reduction product of metal oxidant near-surface layer density of near-surface deposits characteristics of process mechanical failure volume phase solubility of components adsorption of components reasonable sizes of metal particles 

Notes

REFERENCES

  1. 1.
    P. A. Schweitzer, Fundamentals of Corrosion. Mechanisms, Causes, and Preventative Methods (CRC Press, 2010).Google Scholar
  2. 2.
    Corrosion of Austenitic Stainless Steel: Mechanism, Mitigation and Monitoring, Ed. by H. S. Khatak and B. Raj (Woodhead, 2002).Google Scholar
  3. 3.
    V. A. Skryabin and A. G. Skhirtladze, “Formation of nickel–phosphorus coatings based on units of nonferrous metals and alloys,” Tekhnol. Metall., No. 8, 40–43 (2018).Google Scholar
  4. 4.
    E. Bardal, Corrosion and Protection (Springer, London, 2004).CrossRefGoogle Scholar
  5. 5.
    M. S. Shemakhanskaya, Metal Restoration. Methodical Recommendations (VNIIR, Moscow, 1989).Google Scholar
  6. 6.
    M. Beckert and H. Klemm, Handbook of Metallographic Etching (VEB Deutscher Verlag für Grundstoff, Leipzig, 1986).Google Scholar
  7. 7.
    K. V. Makarenko, S. S. Kuzovov, and N. V. Dmitrieva, “Influence of the microrelief of the surface of the working cavity of a casting mold on structure formation in the surface layer of steel castings,” Tekhnol. Metall., No. 8, 20–24 (2018).Google Scholar
  8. 8.
    A. P. Mitrofanov and K. A. Parsheva, “Influence of impregnation of abrasive tools on the relief state and chemical composition of the surface layer of poorly processed steel,” Tekhnol. Metall., No. 6, 23–27 (2018).Google Scholar
  9. 9.
    D. V. Shadlov, A. Yu. Plotnikov, Yu. A. Maksimenko, and M. F. Rudenko, “Modeling of failures of the external surface of steel pipelines under the action of environment,” Tekhnol. Metall., No. 7, 44–48 (2018).Google Scholar
  10. 10.
    A. E. Bykova, G. Kh. Sharipzyanova, N. I. Volgina, and S. S. Khlamkova, “Methodology for an analysis of reasons for emergency failure of pipes of various steel marks,” Tekhnol. Metall., No. 2, 43–46 (2018).Google Scholar
  11. 11.
    S. D. Pozhidaeva, A. Yu. Eliseeva, and A. M. Ivanov, “Anomalously deep and fast failure of copper and bronze under the action of the corrosion products existing on them,” Russ. Metall. (Metally), No. 13, 1117–1123 (2015).CrossRefGoogle Scholar
  12. 12.
    S. D. Pozhidaeva, A. Yu. Eliseeva, D. A. Sotnikova, and A. M. Ivanov, “On the use of copper waste and bronze as secondary raw materials,” Khim. Tekhnol. 15 (6), 356–363 (2014).Google Scholar
  13. 13.
    A. M. Ivanov, A. Yu. Eliseeva, and S. D. Pozhidaeva, “Method of processing of corrodated units of copper or its alloy,” RF Patent 2577878, Byul. Izobret., No. 24 (2015).Google Scholar
  14. 14.
    S. D. Pozhidaeva, T. V. Makeeva, A. Yu. Eliseeva, and A. M. Ivanov, “Fast and deep failure of zinc in the presence of copper compounds,” Khim. Tekhnol., No. 9, 517–527 (2015).Google Scholar
  15. 15.
    A. M. Ivanov, T. V. Makeeva, and S. D. Pozhidaeva, “Deep oxidation of zinc by the copper(II) compounds under the acid deficiency conditions in the volume phase of the reaction mixture,” Izv. Yugo-Zap. Gos. Univ. Ser. Fiz. Khim., No. 2, 64–71 (2013).Google Scholar
  16. 16.
    Yu. A. Shchepochkina, “Aluminum-based alloy,” RF Patent 2391428, Byul. Izobret., No. 16 (2010). http://www.freepatent.ru/images/patents/71/2391428/ patent-2391428.pdf.Google Scholar
  17. 17.
    S. D. Pozhidaeva, A. M. Ivanov, D. A. Sotnikova, and A. Yu. Eliseeva, “Interaction of copper(II) oxide with monobasic mineral acids under model condition and in the presence of metallic copper,” Inorg. Khim. 58 (12), 1428–1433 (2013).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Southwest State UniversityKurskRussia

Personalised recommendations