Material characteristics of laser-cladded hypereutectoid rail steels

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dc.contributor.authorLai, Qen_AU
dc.contributor.authorRoy, Ten_AU
dc.contributor.authorAbrahams, Ren_AU
dc.contributor.authorYan, Wen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorQiu, Cen_AU
dc.contributor.authorMutton, PJen_AU
dc.contributor.authorSoodi, Men_AU
dc.date.accessioned2021-03-02T01:14:52Zen_AU
dc.date.available2021-03-02T01:14:52Zen_AU
dc.date.issued2018-01-01en_AU
dc.date.statistics2021-03-02en_AU
dc.description.abstractThe impact of preheating conditions and carbon dilution on the microstructural and mechanical properties of laser cladded rails at various number of deposition layers has been investigated for hypereutectoid steel grades typically used under heavy hall conditions. The microstructures in the HAZ showed that formation of martensite, which has a detrimental effect on behaviour in wheel-rail contact, was successfully inhibited by increasing the length of the preheated region using a preheating temperature of 350C. Dilution of carbon from the hypereutectoid substrate was observed and its effect on the microstructures on the 410L ferritic stainless-steel deposits was investigated. The formation of the ferrite in the 410L cladding layers was attributed to the very low carbon content, and no carbide formation was observed on boundaries of the ferritic grains. The thickness of the dilution band was determined to be approximately equal to the thickness of the first cladding layer. Mechanical charaterization of the 410L deposits undertaken in terms of Vickers microhardness was correlated with the observed microstructural morphologies. © 2021 Informiten_AU
dc.identifier.citationLai, Q., Roy, T., Abrahams, R., Yan, W., Paradowska, A., Qiu, C., Mutton, P., & Soodi, M. (2018). Material characteristics of laser-cladded hypereutectoid rail steels. Paper presented CORE 2018: Conference on Railway Excellence, Barton, Sydney, NSW, 30 April 2018 - 02 May 2018. In Core 2018 : conference on railway excellence. (pp. 356-363). BARTON, ACT: Railway Technical Society of Australasia (RTSA); Technical Society of Engineers Australia. en_AU
dc.identifier.conferenceenddate2 May 2018en_AU
dc.identifier.conferencenameCORE 2018: Conference on Railway Excellenceen_AU
dc.identifier.conferenceplaceSydney, NSWen_AU
dc.identifier.conferencestartdate30 April 2018en_AU
dc.identifier.isbn9781925627046en_AU
dc.identifier.pagination353-363en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10454en_AU
dc.language.isoenen_AU
dc.publisherRailway Technical Society of Australasia (RTSA); Technical Society of Engineers Australia. en_AU
dc.publisher.placeBarton, ACTen_AU
dc.subjectCladdingen_AU
dc.subjectLasersen_AU
dc.subjectSteelsen_AU
dc.subjectMicrostructureen_AU
dc.subjectMechanical propertiesen_AU
dc.subjectMartensiteen_AU
dc.subjectCarbonen_AU
dc.subjectStainless steelsen_AU
dc.subjectFerritic steelsen_AU
dc.subjectMicrohardnessen_AU
dc.subjectVickers hardnessen_AU
dc.subjectCarbidesen_AU
dc.subjectLayersen_AU
dc.subjectHeat treatmentsen_AU
dc.titleMaterial characteristics of laser-cladded hypereutectoid rail steelsen_AU
dc.typeConference Paperen_AU
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