Study of interactive stresses in thin WC-Co coating of thick mild steel substrate using high-precision neutron diffraction

Andrew M. Venter, Vladimir Luzin, O. Philip Oladijo, Lesley A. Cornish, Natasha Sacks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Investigations of interaction residual stresses between thin WC-Co surface coated layers on thick mild steel substrates have successfully been performed with neutron diffraction. This systematic approach was conducted on the reference grit-blasted substrates and their HVOF coated WC-Co products. Using a sub-millimeter gauge volume, precisely positioned, the stress gradient through the coated and non-coated substrates were determined and used to derive the coating stress condition prevailing in the thin coating by applying the stress balance (Stoney) approach. In addition, the average stress in each 200 μm thick coating was measured directly with very good agreement obtained between the calculated and measured stress values. Investigations were extended to determine the thermal nature of the residual stresses by studying the annealed counterpart samples as well to follow the evolution of the residual stress upon annealing.

Original languageEnglish
Title of host publicationMechanical Stress Evaluation by Neutrons and Synchrotron Radiation VI
Pages161-165
Number of pages5
Volume772
DOIs
Publication statusPublished - 2014
Event6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, MECA SENS VI 2011 - Hamburg, Germany
Duration: Sep 7 2011Sep 9 2011

Publication series

NameMaterials Science Forum
Volume772
ISSN (Print)02555476

Other

Other6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation, MECA SENS VI 2011
CountryGermany
CityHamburg
Period9/7/119/9/11

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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  • Cite this

    Venter, A. M., Luzin, V., Oladijo, O. P., Cornish, L. A., & Sacks, N. (2014). Study of interactive stresses in thin WC-Co coating of thick mild steel substrate using high-precision neutron diffraction. In Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation VI (Vol. 772, pp. 161-165). (Materials Science Forum; Vol. 772). https://doi.org/10.4028/www.scientific.net/MSF.772.161