Finite element analysis of thermal cycle in laser cladding for railway repair

Simple item page
dc.contributor.authorLai, Qen_AU
dc.contributor.authorAbrahams, Ren_AU
dc.contributor.authorYan, Wen_AU
dc.contributor.authorMutton, PJen_AU
dc.contributor.authorQiu, Cen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorSoodi, Men_AU
dc.contributor.authorRoy, Ten_AU
dc.date.accessioned2021-03-03T22:26:03Zen_AU
dc.date.available2021-03-03T22:26:03Zen_AU
dc.date.issued2017-01-01en_AU
dc.date.statistics2021-03-02en_AU
dc.description.abstractMaterial degradation in the forms of wear and rolling contact fatigue is one of main hindrances in the development of today's expeditious heavy-haul railway systems. Laser cladding is proposed as a promising repair technique for damaged rail tracks so as to mitigate the material degradation rates and prolong the component service life. This paper reports the influence of laser cladding directions on thermal cycle and the corresponding mircostructures and service performance of laser cladded premium hypereutectoid rails. For two separate cladding directions, thermal information of pre-, during and post-laser treatment on three dimensional 68 kg rail models was simulated via ANSYS platform. Furthermore, microstructural characteristics of the actual rails under the analogous processing conditions were assessed via optical microscopy. Potential mechanical and tribological properties were characterized by Vickers indentation. The unified correlations between the measured properties and observed microstructural features were acquired. The reasons for the formation of martensite renowned for great cracking tendency at certain regions in HAZ were unveiled, thus future prevention of forming martensite can be achieved.en_AU
dc.identifier.booktitle9th Australasian Congress on Applied Mechanics (ACAM9), University of NSW, Sydney, 27-29 November 2017en_AU
dc.identifier.citationLai, Q., Abrahams, R., Yan, W., Mutton, P., Qiu, C., Paradowska, A., Soodi, M., & Roy, T. (2017). Finite element analysis of thermal cycle in laser cladding for railway repair. In 9th Australasian Congress on Applied Mechanics 2017 (ACAM 9) . Paper presented at Proceedings of the 9th Australasian Congress on Applied Mechanics (ACAM9), Sydney, Engineers Australia, 27-29 November 2017.en_AU
dc.identifier.conferenceenddate29 November 2017en_AU
dc.identifier.conferencename9th Australasian Congress on Applied Mechanics (ACAM9)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate27 November 2017en_AU
dc.identifier.editorsPrusty, G. & Paradowska, A.en_AU
dc.identifier.isbn9781925627022en_AU
dc.identifier.pagination455-462en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10472en_AU
dc.language.isoenen_AU
dc.publisherEngineers Australiaen_AU
dc.subjectCladdingen_AU
dc.subjectLasersen_AU
dc.subjectRailwaysen_AU
dc.subjectMicrostructureen_AU
dc.subjectVickers hardnessen_AU
dc.subjectMartensiteen_AU
dc.subjectTribologyen_AU
dc.subjectHeat treatmentsen_AU
dc.subjectFatigueen_AU
dc.titleFinite element analysis of thermal cycle in laser cladding for railway repairen_AU
dc.typeConference Paperen_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
Conference Publications