Verification of residual stresses in flash-butt-weld rails using neutron diffraction

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dc.contributor.authorTawfik, Den_AU
dc.contributor.authorKristein, Oen_AU
dc.contributor.authorMutton, PJen_AU
dc.contributor.authorChiu, WKen_AU
dc.date.accessioned2022-05-23T05:44:28Zen_AU
dc.date.available2022-05-23T05:44:28Zen_AU
dc.date.issued2005-11-27en_AU
dc.date.statistics2022-05-20en_AU
dc.descriptionPhysical copy held by ANSTO Library at DDC 539.7217/2en_AU
dc.description.abstractResidual stresses developed during flash-butt welding may play a crucial role in prolonging the fatigue life of the welded tracks under service loading conditions. The finished welds typically exhibit high levels of tensile residual stresses in the web region of the weld. Moreover, the surface condition of the web may contain shear drag or other defects resulting from the shearing process which may lead to the initiation and propagation of fatigue cracks in a horizontal split web failure mode under high axle loads. However, a comprehensive understanding into the residual stress behaviour throughout the complex weld geometry remains unclear and is considered necessary to establish the correct localised post-weld heat treatment modifications intended to lower tensile residual stresses. This investigation used the neutron diffraction technique to analyse residual stresses in an AS60 flash-butt-welded rail cooled under normal operating conditions. The findings will ultimately contribute to developing modifications to the flash-butt-welding procedure to lower tensile residual stresses which may then improve rail performance under high axle load conditions. © The Authorsen_AU
dc.identifier.booktitleFinal Programme and Abstract Booken_AU
dc.identifier.citationTawfik, D., Kirstein, O., Mutton, P. J., & Chiu, W. K. (2006). Verification of residual stresses in flash-butt-weld rails using neutron diffraction. Paper presented at the Eighth International Conference on Neutron Scattering ICNS 2005: "Neutrons for structure and dynamics - a new era", Sydney Convention & Exhibition Centre, Sydney, Australia, 27 November-2 December 2005. In Final Programme and Abstract Book, (pp. 264).en_AU
dc.identifier.conferenceenddate2 December 2005en_AU
dc.identifier.conferencenameEighth International Conference on Neutron Scattering ICNS 2005: 'Neutrons for structure and dynamics - a new eraen_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate27 November 2005en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13195en_AU
dc.language.isoenen_AU
dc.publisherThe Bragg Institute, Australian Nuclear Science and Technology Organisationen_AU
dc.subjectFatigueen_AU
dc.subjectHeat treatmentsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPerformanceen_AU
dc.subjectResidual stressesen_AU
dc.subjectStructural chemical analysisen_AU
dc.subjectWelded jointsen_AU
dc.subjectWeldingen_AU
dc.titleVerification of residual stresses in flash-butt-weld rails using neutron diffractionen_AU
dc.typeConference Abstracten_AU
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