Characteristic nonmetallic inclusions in welded joints oil and gas of pipelines
نویسندگان
چکیده
منابع مشابه
Oil and Gas Facilities and Pipelines
Delivering revenue, logistics and sustainability in challenging locations
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متن کاملRelaxation behavior of polyethylene welded joints
The paper presents results of the investigation of structure relaxation and thermal properties of PE-80 and PE-100 polyethylene hot-tool butt welds. It was found that a weld with the re-crystallized crystalline structure is formed during the welding of dissimilar types of polyethylene. It is shown that within a long period (1 year) the relaxation occurs not only in amorphous but also in the cry...
متن کاملFatigue Life of Repaired Welded Tubular Joints
In this study, the effect of repair on fatigue life of tubular joints is investigated. Six cracked specimens precedently subjected to fatigue loading undergone to weld repair. Two of those specimens were shot peened before primary fatigue loading. It is shown that repair gives rise to about 150% increase in fatigue life for original specimens while the increase of fatigue life for shot-peened ...
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ژورنال
عنوان ژورنال: Oil and Gas Business
سال: 2014
ISSN: 1813-503X
DOI: 10.17122/ogbus-2014-2-80-94