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Title: Failure analysis on a ruptured petrochemical pipe
Other Titles: Schadensanalyse an einem rohrbruch einer petrochemikalien
Authors: Mohd, Harun
Shaiful Rizam, Shamsudin
Azmi, Kamardin
???metadata.dc.contributor.url???: mohd_harun@nuclearmalaysia.gov.my
Keywords: Petrochemical pipe;Stress corrosion cracking (SCC);Piting index (PI)
Issue Date: 16-Mar-2010
Publisher: Carl Hanser Verlag
Citation: Praktische Metallographie/Practical Metallography, vol.47 (6), 2010, pages 206-215
Abstract: The failure took place on a welded elbow pipe which exhibited a catastrophic transverse rupture. The failure was located on the welding HAZ region, parallel to the welding path. Branching cracks were detected at the edge of the rupture area. Deposits of corrosion products were also spotted. The optical microscope analysis showed the presence of transgranular failures which were related to the stress corrosion cracking (SCC) and were predominantly caused by the welding residual stress. The significant difference in hardness between the welded area and the pipe confirmed the findings. Moreover, the failure was also caused by the low Mo content in the stainless steel pipe which was detected by means of spark emission spectrometer.
Description: Link to publisher's homepage at http://www.materialography.net/index.php?id=1&L=1
URI: http://hdl.handle.net/123456789/8064
ISSN: 0032-678X
Appears in Collections:Azmi Kamardin
School of Materials Engineering (Articles)

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