Effect of deposition material and heat treatment on wear and rolling contact fatigue of laser cladded rails

Simple item page
dc.contributor.authorRoy, Ten_AU
dc.contributor.authorLai, Qen_AU
dc.contributor.authorAbrahams, Ren_AU
dc.contributor.authorMutton, PJen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorSoodi, Men_AU
dc.contributor.authorYan, Wen_AU
dc.date.accessioned2021-02-11T02:04:40Zen_AU
dc.date.available2021-02-11T02:04:40Zen_AU
dc.date.issued2018-10-15en_AU
dc.date.statistics2021-02-09en_AU
dc.description.abstractTo develop a laser cladding technique for repairing rail surface damages due to rolling contact, wear and rolling contact fatigue characteristics of a set of laser cladded rails were investigated using a roller-on-disc test machine. Three deposition materials 410L, SS420 and Stellite 6, were chosen to clad a premium hypereutectoid steel rail under two different heat treatment processes. In the first heat treatment, only preheating at 350 °C was conducted and in the second heat treatment, preheating at 350 °C, post-heating at 350 °C (1 h) then slow-cooling to room temperature was conducted. Preheating the substrate was insufficient to prevent martensite formation resulting from the rapid cooling rate, whereas post heat treatment was beneficial for refining the lamellar spacing and eliminating martensite formation in the clad layer and heat affected zone. Following the roller-on-disc tests, wear loss was calculated from wear track profiles using a laser optical profilometer. The level of surface degradation, surface cracking and spalling was investigated using an optical microscope. Experimental results revealed that SS420 cladding had the highest wear resistant behaviour but severe surface cracks and spalling were found in the worn area. Stellite 6 cladding showed similar wear resistance as the parent substrate rail and the best fatigue resistance behaviour among the three cladded rail samples. Based on this research, Stellite 6 is the most promising deposition material for repairing rails by laser cladding. © 2018 Elsevier B.V.en_AU
dc.identifier.citationRoy, T., Lai, Q., Abrahams, R., Mutton, P., Paradowska, A., Soodi, M., & Yan, W. (2018). Effect of deposition material and heat treatment on wear and rolling contact fatigue of laser cladded rails. Wear, 412–413, 69-81. doi:10.1016/j.wear.2018.07.001en_AU
dc.identifier.issn0043-1648en_AU
dc.identifier.journaltitleWearen_AU
dc.identifier.pagination69-81en_AU
dc.identifier.urihttps://doi.org/10.1016/j.wear.2018.07.001en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10370en_AU
dc.identifier.volume412-413en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectWearen_AU
dc.subjectCladdingen_AU
dc.subjectLasersen_AU
dc.subjectRollingen_AU
dc.subjectHeat treatmentsen_AU
dc.subjectFatigueen_AU
dc.titleEffect of deposition material and heat treatment on wear and rolling contact fatigue of laser cladded railsen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles