Skip to main content
placeholder image

Effect of cooling rate on oxidation behaviour of microalloyed steel

Journal Article


Download full-text (Open Access)

Abstract


  • Oxidation characteristics of a microalloyed low carbon steel were investigated by a hot rolling mill combined with acceleration cooling system over the cooling rate range from 20 to 70°C/s. The effects of cooling rate after hot rolling on microstructure and phase composition of oxide scale were examined. The results showed that the increase of the cooling rate has a significant influence on the decrease of the grain size and surface roughness of oxide scale. A higher cooling rate promotes the formation of retain wustite and primary magnetite precipitation while suppression of eutectoid α-iron precipitates. This provides the possibility to enhance potential contribution of magnetite precipitates with preferable ductility, and hence fabricates a desired oxide-scale structure under continuous post cooling conditions considering a suitable cooling rate.

Publication Date


  • 2013

Citation


  • Yu, X., Jiang, Z., Zhao, J., Wei, D. & Zhou, C. (2013). Effect of cooling rate on oxidation behaviour of microalloyed steel. Applied Mechanics and Materials, 395-396 273-278.

Scopus Eid


  • 2-s2.0-84886290870

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2685&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1676

Number Of Pages


  • 5

Start Page


  • 273

End Page


  • 278

Volume


  • 395-396

Abstract


  • Oxidation characteristics of a microalloyed low carbon steel were investigated by a hot rolling mill combined with acceleration cooling system over the cooling rate range from 20 to 70°C/s. The effects of cooling rate after hot rolling on microstructure and phase composition of oxide scale were examined. The results showed that the increase of the cooling rate has a significant influence on the decrease of the grain size and surface roughness of oxide scale. A higher cooling rate promotes the formation of retain wustite and primary magnetite precipitation while suppression of eutectoid α-iron precipitates. This provides the possibility to enhance potential contribution of magnetite precipitates with preferable ductility, and hence fabricates a desired oxide-scale structure under continuous post cooling conditions considering a suitable cooling rate.

Publication Date


  • 2013

Citation


  • Yu, X., Jiang, Z., Zhao, J., Wei, D. & Zhou, C. (2013). Effect of cooling rate on oxidation behaviour of microalloyed steel. Applied Mechanics and Materials, 395-396 273-278.

Scopus Eid


  • 2-s2.0-84886290870

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2685&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1676

Number Of Pages


  • 5

Start Page


  • 273

End Page


  • 278

Volume


  • 395-396