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Some aspects in studying corrosion of 25Kh1MF (25Cr1MoW) steel fasteners after aluminizing
https://doi.org/10.22349/1994-6716-2018-93-1-182-189
Abstract
The resistance to atmospheric corrosion of 25Kh1MF (25Cr1MoW) steel after aluminizing and thermal improvement has been studied. It is established that the reduced resistance of the aluminized layer to atmospheric corrosion is caused by surface defects such as cracks or pores or by absence of a layer containing the intermetallide Fe3Al. In the aluminized layer containing aluminum-doped ferrite, aluminum nitrides have been found that prevent cold diffusion welding of fasteners’ thread surfaces.
Keywords
steel fasteners,
thread surfaces,
corrosion damage,
cold diffusion welding,
aluminizing,
thermal improvement
Supporting agencies: Ministry of Education and Science under the agreement No. 14.595.21.0004, the unique identifier RFMEFI59517X0004.
About the Authors
M. I. Olenin
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand. Sc. (Eng)
49, Shpalernaya St, 191015 St Petersburg
V. I. Gorynin
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Dr Sc.
49, Shpalernaya St, 191015 St Petersburg
B. I. Berezhko
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand. Sc. (Eng)
49, Shpalernaya St, 191015 St Petersburg
I. M. Khovratovich
AO “Krasny Oktyabr”
Russian Federation
Russian Federation
110, Lenina Prospect, 400007 Volgograd
49, Shpalernaya St, 191015 St Petersburg
A. V. Ptashnik
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
Russian Federation
49, Shpalernaya St, 191015 St Petersburg
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Review
For citations:
Olenin M.I., Gorynin V.I., Berezhko B.I., Khovratovich I.M., Ptashnik A.V. Some aspects in studying corrosion of 25Kh1MF (25Cr1MoW) steel fasteners after aluminizing. Voprosy Materialovedeniya. 2018;(1(93)):182-189. (In Russ.) https://doi.org/10.22349/1994-6716-2018-93-1-182-189
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