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The role of oxide-scale microtexture on tribological behaviour in the nanoparticle lubrication of hot rolling

Journal Article


Abstract


  • Electron backscatter diffraction (EBSD) of the microtexture in the tertiary oxide scale after hot rolling were investigated. The surface asperity flattening and grain refinement of Fe3O4 were produced at a thickness reduction of 28% and a cooling rate of 28 °C/s. Microtexture development of Fe3O4 manifests as a strong θ fibre parallel to oxide growth, including the {100}<001> and {001}<110> textured components, whereas the {0001}〈101〉0> component dominates in α-Fe2O3 as the favoured basal slip. The tribological effect of α-Fe2O3 at the contact surface of steel and rolls was considered at low and high thickness reductions. The propagation of cracks along the Fe3O4 grain boundaries could create a dish to collect nanoparticles during lubrication and thereby changed the wear rates.

Authors


  •   Yu, Xianglong (external author)
  •   Jiang, Zhengyi
  •   Zhao, Jingwei
  •   Wei, Dongbin
  •   Zhou, Ji (external author)
  •   Zhou, Cunlong (external author)
  •   Huang, Qingxue (external author)

Publication Date


  • 2016

Citation


  • Yu, X., Jiang, Z., Zhao, J., Wei, D., Zhou, J., Zhou, C. & Huang, Q. (2016). The role of oxide-scale microtexture on tribological behaviour in the nanoparticle lubrication of hot rolling. Tribology International, 93 190-201.

Scopus Eid


  • 2-s2.0-84942925487

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4627

Number Of Pages


  • 11

Start Page


  • 190

End Page


  • 201

Volume


  • 93

Abstract


  • Electron backscatter diffraction (EBSD) of the microtexture in the tertiary oxide scale after hot rolling were investigated. The surface asperity flattening and grain refinement of Fe3O4 were produced at a thickness reduction of 28% and a cooling rate of 28 °C/s. Microtexture development of Fe3O4 manifests as a strong θ fibre parallel to oxide growth, including the {100}<001> and {001}<110> textured components, whereas the {0001}〈101〉0> component dominates in α-Fe2O3 as the favoured basal slip. The tribological effect of α-Fe2O3 at the contact surface of steel and rolls was considered at low and high thickness reductions. The propagation of cracks along the Fe3O4 grain boundaries could create a dish to collect nanoparticles during lubrication and thereby changed the wear rates.

Authors


  •   Yu, Xianglong (external author)
  •   Jiang, Zhengyi
  •   Zhao, Jingwei
  •   Wei, Dongbin
  •   Zhou, Ji (external author)
  •   Zhou, Cunlong (external author)
  •   Huang, Qingxue (external author)

Publication Date


  • 2016

Citation


  • Yu, X., Jiang, Z., Zhao, J., Wei, D., Zhou, J., Zhou, C. & Huang, Q. (2016). The role of oxide-scale microtexture on tribological behaviour in the nanoparticle lubrication of hot rolling. Tribology International, 93 190-201.

Scopus Eid


  • 2-s2.0-84942925487

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4627

Number Of Pages


  • 11

Start Page


  • 190

End Page


  • 201

Volume


  • 93