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TPWJ, 2009, #5, 2-7 pages
ANALYSIS OF CONDITIONS CAUSING INITIATION AND PROPAGATION OF CORROSION CRACKS IN ZONES OF CIRCUMFERENTIAL JOINTS ON MAIN GAS PIPELINES
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue № 5, 2009 (May)
Pages 2-7
Authors
V.I. AKHNENKO, V.M. SHEKERA, E.A. VELIKOIVANENKO, O.I. OLEJNIK, G.F. ROZYNKA and N.I. PIVTORAK
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Abstract
The paper deals with conditions causing formation of corrosion cracks within the zones of circumferential field and longitudinal factory welded joints on main gas pipelines. Described is the case study of force conditions and resistance of material to initiation and propagation of stress corrosion cracks up to a spontaneous fracture.
Keywords: welded main gas pipelines, circumferential welded joints, initiation and propagation of corrosion cracks, crack resistance diagram, nominal stresses, stress concentration, stress intensity factors
Received: 25.11.08
Published: 28.05.09
References
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