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Studying the influence of ageing on the stress corrosion cracking initiation of low-carbon steels
https://doi.org/10.22349/1994-6716-2019-98-2-102-109
Abstract
The paper presents results of a study of the stress corrosion cracking (SCC) processes of lowcarbon low-alloyed steels with different levels of ageing. It is shown that the limit of macroelasticity and the incubation period of the SCC decrease with the increase of the ageing level. This can be explained as follows: the limit of macroelasticity determines the beginning of microplastic flow in the material, actively affecting the process of stress corrosion cracking. Basing on selected test pattern the dependence of the stress corrosion cracking from the ageing level has a three-stage character. Behavior of the chosen characteristic is explained on the grounds of the theory of defects.
Keywords
low-carbon steel,
stress corrosion cracking,
ageing,
crack,
macroelasticity limit,
incubation period
Supporting agencies: The work was carried out with financial support of Russian Federation Ministry of education in frames of scientific project RFMEFI58017X0012.
About the Authors
E. N. Butusova
Shipbuilding company AEROKHOD Ltd.
Russian Federation
Russian Federation
V. V. Mishakin
Mechanical Engineering Research Institute of RAS – branch of Institute of Applied Physics of RAS
Russian Federation
Dr Sc. (Eng)
Russian Federation
Dr Sc. (Eng)
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Review
For citations:
Butusova E.N., Mishakin V.V. Studying the influence of ageing on the stress corrosion cracking initiation of low-carbon steels. Voprosy Materialovedeniya. 2019;(2(98)):102-109. (In Russ.) https://doi.org/10.22349/1994-6716-2019-98-2-102-109
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