Failures and breakdowns of transport pipelines are especially dangerous because they are connected with enormous material losses, environment damages and very often with serious human casualties and injuries. The worldwide experience in the exploitation of hundreds of thousands kilometers of gas and oil pipelines shows that the number of failures and the probability of catastrophes in the pipelines grows with the increasing operation time due to pipeline material ageing. The object of this investigation is the behavior of C55E (09Г2C) pipeline steel subject to long-term model static loading. The structure and mechanical properties in initial state are compared to the steel characteristics after 15 years stay under static loading by internal pressure. Particular attention is paid to the changes of strength and toughness which are of special importance for the reliable pipeline operation in oil and gas transportation.
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Vodenicharov, S. (2008). Degradation of the Physical and Mechanical Properties of Pipeline Material Depending on Exploitation Term. In: Pluvinage, G., Elwany, M.H. (eds) Safety, Reliability and Risks Associated with Water, Oil and Gas Pipelines. NATO Science for Peace and Security Series. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6526-2_17
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DOI: https://doi.org/10.1007/978-1-4020-6526-2_17
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