چکیده مقاله
Stress Corrosion Crack SCC in pipeline is a type of environmentally assisted cracking EAC , since its discovery in 1965 as a possible cause of failure in pipeline, SCC has caused, on average, one of two failures per year in the U S, According to the NACE SCC DA a pipe line segment is considered susceptible to SCC if all of the following factors are met: The operating stress exceeds 60% of specified minimum yield strength SMYS , the operating temperature exceeds 38°C, the segment is less than 32 km downstreamfrom a compressor station, the age of the pipeline is greater than 10 years and the coating type is other than Fusion Bonded Epoxy FBE In this paper as a practical experience in NISOC, Direct Assessment DA Method is used for identification SCC defect in unpiggable pipeline located downstream of compressor station
کلیدواژهها
نویسندگان
H Gholami
Department of Manufacturing, Dezful Branch, Islamic Azad university, Dezful, Iran
M Jalali Azizpour
Department of Manufacturing, Dezful Branch, Islamic Azad university, Dezful, Iran
شیوه ارجاع
Gholami, H and Jalali Azizpour, M,1393,Stress corrosion crack identification with direct assessment method in pipeline downstream from a compressor station,The 15th National Conference on Welding and Inspection and the Fourth National Conference on Non-Destructive Testing,Ahvaz
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مجموعه مقالات پانزدهمین کنفرانس ملی جوش و بازرسی و چهارمین کنفرانس ملی آزمایشهای غیرمخرب9 دی 1393 · اهواز