Residual stress measurement in laser cladded rail utilizing neutron diffraction technique

Taposh Roy, Anna Paradowska, Quan Lai, Ralph Abrahams, Michael Law, Peter Mutton, Mehdi Soodi, Wenyi Yan

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

The residual stress distribution of an excellent abrasion and corrosion resistant steel was evaluated to assess the potential of using laser cladding as a repair tool for rail track components. 410L steel powder was used to clad over a head treated rail steel substrate using a 4 kW IPG fibre laser. Pre-heating the substrate before cladding was investigated. Residual stress was measured by using neutron diffraction facility at the OPAL reactor, ANSTO (Australian Nuclear Science and Technology Organisation). A new experimental method was developed to measure residual stress of a small area of interest in large thick component. Residual stress results showed a compressive residual stress at the top surface of virgin and cladded rail. Clad layer was characterised by compressive residual stress and HAZ was characterised by tensile residual stress. A beneficial compressive residual stress was found at the cladding-substrate interface.

Original languageEnglish
Title of host publication9th Australasian Congress on Applied Mechanics (ACAM 2017)
EditorsGangadhara Prusty, Anna Paradowska
Place of PublicationSydney Australia
PublisherEngineers Australia
Number of pages8
ISBN (Electronic)9781925627022
Publication statusPublished - 1 Jan 2017
EventAustralasian Congress on Applied Mechanics 2017 - University of New South Wales, Sydney, Australia
Duration: 27 Nov 201729 Nov 2017
Conference number: 9th
https://acam9.com.au/

Conference

ConferenceAustralasian Congress on Applied Mechanics 2017
Abbreviated titleACAM 2017
CountryAustralia
CitySydney
Period27/11/1729/11/17
Internet address

Keywords

  • Laser cladding
  • Neutron Diffraction
  • Rail
  • Residual stress

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