Evaluation of the mechanical properties of laser cladded hypereutectoid steel rails

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dc.contributor.authorRoy, Ten_AU
dc.contributor.authorAbrahams, Ren_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorLai, Qen_AU
dc.contributor.authorMutton, PRen_AU
dc.contributor.authorSoodi, Men_AU
dc.contributor.authorFasuhi, Pen_AU
dc.contributor.authorYan, Wen_AU
dc.date.accessioned2021-02-12T06:08:17Zen_AU
dc.date.available2021-02-12T06:08:17Zen_AU
dc.date.issued2019-08-15en_AU
dc.date.statistics2021-02-11en_AU
dc.description.abstractLocal material properties of the cladding layer, heat affected zone and substrate of laser cladded hypereutectoid steel rails were evaluated by uniaxial tensile tests on miniature specimens. Three laser cladding materials, i.e. 410 L, SS420 and Stellite 6, and two different heat treatment conditions were considered. To examine any possible anisotropic behaviour, specimens machined along the longitudinal and transverse laser cladding directions were tested. All the cladding layers showed similar or higher yield and ultimate tensile strengths, but lower elongation than the non-clad rail. Application of post-heat treatment significantly improved the elongation of all the cladding layer specimens. Elongation increments of 70%, 192% and 90% were respectively obtained from the 410 L, SS420 and Stellite 6 post-heat treated cladding layers. The post-heat treatment also marginally increased the yield and ultimate tensile strengths in this region. The improvement in tensile properties was associated with a more favourable microstructure, which resulted in a more dimpled morphology as depicted in the SEM images of the fractographic analysis of the tested specimens. While other properties are similar, both cladding layer and HAZ specimens showed significant different elongation values between the longitudinal and transverse directions in some cases, which indicates certain anisotropy in those materials’ ductility. © 2019 Elsevier B.V.en_AU
dc.identifier.articlenumber202930en_AU
dc.identifier.citationRoy, T., Abrahams, R., Paradowska, A., Lai, Q., Mutton, P., Soodi, M., Fasihi, P., & Yan, W. (2019). Evaluation of the mechanical properties of laser cladded hypereutectoid steel rails. Paper presented at the 11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM 2018): Delft, The Netherlands, September 24-27, 2018. In Li, Z., Berg, M., Fletcher, D., Meehan, P., & Núñez, A. (Eds), Wear, 432-433, 202930. doi:10.1016/j.wear.2019.202930en_AU
dc.identifier.conferenceenddate27 September 2018en_AU
dc.identifier.conferencename11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM 2018)en_AU
dc.identifier.conferenceplaceDelft, The Netherlands.en_AU
dc.identifier.conferencestartdate24 September 2018en_AU
dc.identifier.issn0043-1648en_AU
dc.identifier.journaltitleWearen_AU
dc.identifier.urihttps://doi.org/10.1016/j.wear.2019.202930en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10398en_AU
dc.identifier.volume432-433en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.subjectCladdingen_AU
dc.subjectTensile propertiesen_AU
dc.subjectHeat affected zoneen_AU
dc.subjectMaterialsen_AU
dc.subjectHeat treatmentsen_AU
dc.subjectYield strengthen_AU
dc.subjectAnisotropyen_AU
dc.titleEvaluation of the mechanical properties of laser cladded hypereutectoid steel railsen_AU
dc.typeConference paperen_AU
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