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Inorganic Materials: Applied Research

, Volume 9, Issue 6, pp 1182–1187 | Cite as

Some Aspects of Studying the Corrosion Processes in 25Kh1MF Steel Fasteners after Aluminizing

  • M. I. OleninEmail author
  • V. I. Gorynin
  • B. I. Berezhko
  • I. M. Khovratovich
  • A. V. Ptashnik
CORROSION AND PROTECTION OF METALS
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Abstract—The resistance to atmospheric corrosion of 25Kh1MF steel after aluminizing and thermal improvement has been studied. It is established that the low resistance of the aluminized layer to atmospheric corrosion is caused by surface defects, such as cracks and the pores, or by the partial removal of the layer containing the Fe3Al intermetallic. In the aluminized layer containing ferrite doped with aluminum, aluminum nitrides that prevent the cold diffusion welding of mating thread surfaces of fasteners are found.

Keywords:

steel fasteners mating thread surfaces corrosion damage cold diffusion welding aluminizing thermal improvement 

Notes

ACKNOWLEDGMENTS

Experimental studies were carried out on the equipment of the Center for Collective Use of Scientific Equipment Composition, Structure, and Properties of Structural and Functional Materials of the National Research Center Kurchatov Institute—Central Research Institute of Structural Materials Prometey with the financial support of the Ministry of Education and Science under agreement no. 14.595.21.0004 (unique identification number RFMEFI59517X0004).

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • M. I. Olenin
    • 1
    Email author
  • V. I. Gorynin
    • 1
  • B. I. Berezhko
    • 1
  • I. M. Khovratovich
    • 2
  • A. V. Ptashnik
    • 1
  1. 1.National Research Center Kurchatov Institute—Central Research Institute of Structural Materials PrometeySt. PetersburgRussia
  2. 2.AO VMZ Krasny OktyabrVolgogradRussia

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