Influence of long-term operation on the properties of main gas pipeline steels. A review
| Autor: | L.I. Nyrkova, S.O. Osadchuk, L.V. Goncharenko, A.O. Rybakov, Yu. O. Kharchenko |
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| Jazyk: | English<br />Ukrainian |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Фізика і хімія твердого тіла, Vol 25, Iss 1, Pp 191-202 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1729-4428 2309-8589 |
| DOI: | 10.15330/pcss.25.1.191-202 |
| Popis: | Underground pipelines during operation are affected by mechanical and corrosive factors. The susceptibility of cathodically protected pipe to hydrogen degradation increases, which contributes to stress-corrosion cracking. It is believed that the main factor in pipeline steels degradation is deformation aging, which increases strength and reduces plasticity. Volume microdamages also develop in long-time exploited steels. But in many cases, the base metal and welded joints of long-term operated pipelines retain satisfactory performance. Due to the high value of viscosity and plasticity of the metal in an as-received state, the metal state of long-term operated gas pipelines can be considered satisfactory. |
| Databáze: | Directory of Open Access Journals |
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