Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/10511
Title: Effect of cladding direction on residual stress distribution in laser cladded rails
Authors: Roy, T
Paradowska, AM
Abrahams, R
Lai, Q
Law, M
Mutton, PJ
Soodi, M
Yan, W
Keywords: Neutron diffraction
Residual Stress
Cladding
Lasers
OPAL Reactor
Railways
Issue Date: 1-Jan-2018
Publisher: Zenodo
Citation: Roy, T., Paradowska, A., Abrahams, R., Lai, Q., Law, M., Mutton, P., Soodi, M., Yan, W. (2018). Effect of cladding direction on residual stress distribution in laser cladded rails. In International Journal of Architectural, Civil and Construction Sciences, 11(9), 1359-1363. Paper presented at ICRE 2017 : International Conference on Railway Engineering, London, United Kingdom, September 21-22, 2017. doi:10.5281/zenodo.1315849
Abstract: In this investigation, a laser cladding process with a powder feeding was used to deposit stainless steel 410L (high strength, excellent resistance to abrasion and corrosion, and great laser compatibility) onto railhead (higher strength, heat treated hypereutectoid rail grade manufactured in accordance with the requirements of European standard EN 13674 Part 1 for R400HT grade), to investigate the development and controllability of process-induced residual stress in the cladding, heat-affected zone (HAZ) and substrate and to analyse their correlation with hardness profile during two different laser cladding directions (across and along the track). Residual stresses were analysed by neutron diffraction at OPAL reactor, ANSTO. Neutron diffraction was carried out on the samples in longitudinal (parallel to the rail), transverse (perpendicular to the rail) and normal (through thickness) directions with high spatial resolution through the thickness. Due to the thick rail and thin cladding, 4 mm thick reference samples were prepared from every specimen by Electric Discharge Machining (EDM). Metallography across the laser claded sample revealed four distinct zones: The clad zone, the dilution zone, HAZ and the substrate. Compressive residual stresses were found in the clad zone and tensile residual stress in the dilution zone and HAZ. Laser cladding in longitudinally cladding induced higher tensile stress in the HAZ, whereas transversely cladding rail showed lower tensile behavior. © Creative Commons Attribution 4.0 International License
URI: doi.org/10.5281/zenodo.1315849
https://apo.ansto.gov.au/dspace/handle/10238/10511
Appears in Collections:Conference Publications

Files in This Item:
File Description SizeFormat 
Effect-of-Cladding-Direction-on-Residual-Stress-Distribution-in-Laser-Cladded-Rails.pdf670.76 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.