Maintaining safe and reliable high-pressure pipeline systems is important because the products transported through pipelines - hydrocarbons in either gas or liquid form including natural gas, crude oil, high vapour pressure products such as propane and refined products such as gasoline or jet fuel - are hazardous substances. There is always the chance that pipelines could leak or rupture and a pipeline failure can cause serious human, environmental and financial losses . Some features of the problem of pipeline materials degradation and failure under in-service conditions, including environmentally assisted cracking, are examined. As the practice of cathodic protection results in hydrogen charging of carbon steels used as components of oil and natural gas transmission pipelines, close attention is paid to the role of hydrogen embrittlement (hydrogen-induced cracking) in pipeline safety and reliability.
Structural integrity of aging buried pipelines having cathodic protection
Strukturelle Integrität bei der Alterung unterirdischer Pipelines mit kathodischem Schutz
Engineering Failure Analysis ; 13 , 7 ; 1159-1176
2006
18 Seiten, 11 Bilder, 2 Tabellen, 101 Quellen
Article (Journal)
English
Pipeline , Abnutzung , Materialabtragung , Materialbeanspruchung , Betriebszustand , Ausfall , Ausfallrate , kathodischer Korrosionsschutz , Rissbildung , Umwelteinfluss , Kohlenstoffstahl , Versprödung , Wasserstoffversprödung , Oel , Erdgas , Betriebssicherheit , Zuverlässigkeit , unterirdische Rohrleitung
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