Corrosion cracking of high-strength structural steels

Azhogin, F. F.

doi:10.1007/bf00714773

Cited by 8 publications

(2 citation statements)

References 6 publications

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“…It should be noted that during stress corrosion proceeding with hydrogen depolarization, the second period is also associated with metal hydrogenation in the cathode regions, which can lead to hydrogen embrittlement. In general, the formation of a crack during corrosion cracking is associated with the localization and strengthening of the anodic process in a narrow region of the steel surface, while the rest of the metal surface remains cathodically protected [2].…”

Section: Introductionmentioning

confidence: 99%

Causes of corrosion cracking of pipe metal and methods for their protection

Garifullina

2023

E3S Web Conf.

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The article is devoted to studying the problem of corrosion cracking of pipelines and methods of their protection. An analysis of the main factors that determine the phenomenon of corrosion cracking is given. The article deals with the issue of identification of corrosion cracking based on the “carbonate theory”. The main methods of protection of metal structures from corrosion cracking are given.

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Section: Introductionmentioning

confidence: 99%

Causes of corrosion cracking of pipe metal and methods for their protection

Garifullina

2023

E3S Web Conf.

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“…Corrosion-mechanical fracture is a process of discontinuity of the material, manifested in the simultaneous action of corrosive medium and mechanical stress (applied or residual), and is one of the most common types of brittle fracture of high-strength low-alloy steel in chemical, gas and oil, metallurgical, engineering and other industries [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

On the Influence of Internal and External Factors on the Processes of Corrosion-Mechanical Fracture of High-Strength Low-Alloy Steels

et al. 2021

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The article studies the influence of internal and external factors on the process of corrosion-mechanical fracture. It is shown that depending on the conditions of hydrogen charging (temperature and chemical composition of the corrosive medium, type of polarization), the mechanical properties of low-alloy steels change dramatically during the initial period of the experiment. With further increase in the holding time in a corrosive medium without polarization, there is no significant change in mechanical properties. It was found that an increase in the level of applied tensile stresses leads to a reduction in the incubation period of microcracks during hydrogen cracking. It was found that the sensitivity of low alloy steels to cracking is largely determined by the relaxation ability of the structure-the relaxation of residual peak micro-stresses localized at the grain boundaries and substructure boundaries reduces the sensitivity to corrosion-mechanical fracture.

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