High-pH inclined stress corrosion cracking in Australian and Canadian gas pipeline X65 steels

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dc.contributor.authorLavigne, Oen_AU
dc.contributor.authorGamboa, Een_AU
dc.contributor.authorGriggs, Jen_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorLaw, Men_AU
dc.contributor.authorRoccisano, Aen_AU
dc.date.accessioned2020-03-27T03:52:08Zen_AU
dc.date.available2020-03-27T03:52:08Zen_AU
dc.date.issued2016-05-02en_AU
dc.date.statistics2020-03-20en_AU
dc.description.abstractHigh-pH stress corrosion cracking is a form of environmental degradation of gas pipeline steels. The crack path is intergranular by nature and typically perpendicular to the maximum applied (hoop) stress (i.e. perpendicular to the pipe outer surface). Some unusual instances of cracks have been observed in Canadian and Australian X65 pipes, where cracks grow away from the perpendicular for considerable distances. This paper presents a comparative study in terms of crack morphology, mechanical properties and crystallographic texture for these Australian and Canadian pipe steels. It is shown that the crack morphologies are quite similar, the main difference being the angle at which the cracks propagate into the material. This difference could be explained by the different through-wall texture and grain aspect ratio measured in the two materials. The interdependency of crack tip plasticity, crack tip electrochemistry and anisotropy in microstructural texture seems to heavily affect the resulting inclined crack path. © 2016 Taylor & Francisen_AU
dc.identifier.citationLavigne, O., Gamboa, E., Griggs, J., Luzin, V., Law, M., & Roccisano, A. (2016). High-pH inclined stress corrosion cracking in Australian and Canadian gas pipeline X65 steels. Materials Science and Technology, 32(7), 684-690. doi:10.1080/02670836.2015.1132030en_AU
dc.identifier.govdoc9005en_AU
dc.identifier.issn1005-0302en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleMaterials Science and Technologyen_AU
dc.identifier.pagination684-690en_AU
dc.identifier.urihttp://dx.doi.org/10.1080/02670836.2015.1132030en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9273en_AU
dc.identifier.volume32en_AU
dc.language.isoenen_AU
dc.publisherTaylor & Francisen_AU
dc.subjectStress corrosionen_AU
dc.subjectAustraliaen_AU
dc.subjectCanadaen_AU
dc.subjectPipelinesen_AU
dc.subjectNatural gasen_AU
dc.subjectSteelsen_AU
dc.subjectPlasticityen_AU
dc.subjectElectrochemistryen_AU
dc.titleHigh-pH inclined stress corrosion cracking in Australian and Canadian gas pipeline X65 steelsen_AU
dc.typeJournal Articleen_AU
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