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

I. M. Khovratovich; A. V. Ptashnik; M. I. Olenin; V. I. Gorynin; B. I. Berezhko

doi:10.1134/S2075113318060217

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

Authors: Khovratovich I.M.¹, Ptashnik A.V.², Olenin M.I.², Gorynin V.I.², Berezhko B.I.²
Affiliations:
1. AO VMZ Krasny Oktyabr
2. National Research Center Kurchatov Institute—Central Research Institute of Structural Materials Prometey
Issue: Vol 9, No 6 (2018)
Pages: 1182-1187
Section: Corrosion and Protection of Metals
URL: https://journal-vniispk.ru/2075-1133/article/view/207737
DOI: https://doi.org/10.1134/S2075113318060217
ID: 207737

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Abstract

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

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

Full Text

Abstract

Keywords

About the authors

I. M. Khovratovich

A. V. Ptashnik

M. I. Olenin

V. I. Gorynin

B. I. Berezhko

Supplementary files