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In-situ interfacial tribochemistry toward eliminating red-scale of silicon steel in friction process

Journal Article


Abstract


  • Irregularly striped red-scale defects are often formed on hot rolled silicon steel strips, and some still remain on the surface even after pickling. In this study, an in-situ interfacial tribochemistry concept was proposed to eliminate red-scale silicon steel using ball-on-disc test, by transforming harder eutectic Fe2SiO4/FeO eutectic into other compounds with sodium polyphosphate lubricant. The results show that polyphosphate can lubricate the high speed steel/silicon steel interface effectively with significant reduction of the friction and wear by 50% and 90% respectively. And in situ formed compounds of Na3Fe2(PO4)3 and NaFePO4 at the rubbing interface can eliminate red-scale on silicon steel by weakening the adhesion of oxide scale to the substrate.

Publication Date


  • 2020

Citation


  • Wang, L., Tieu, A., Deng, G., Wang, J., Tran, B. H., Zhu, H. & Yang, J. (2020). In-situ interfacial tribochemistry toward eliminating red-scale of silicon steel in friction process. Tribology International, 143 106077-1-106077-11.

Scopus Eid


  • 2-s2.0-85075125479

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3380

Has Global Citation Frequency


Start Page


  • 106077-1

End Page


  • 106077-11

Volume


  • 143

Place Of Publication


  • United Kingdom

Abstract


  • Irregularly striped red-scale defects are often formed on hot rolled silicon steel strips, and some still remain on the surface even after pickling. In this study, an in-situ interfacial tribochemistry concept was proposed to eliminate red-scale silicon steel using ball-on-disc test, by transforming harder eutectic Fe2SiO4/FeO eutectic into other compounds with sodium polyphosphate lubricant. The results show that polyphosphate can lubricate the high speed steel/silicon steel interface effectively with significant reduction of the friction and wear by 50% and 90% respectively. And in situ formed compounds of Na3Fe2(PO4)3 and NaFePO4 at the rubbing interface can eliminate red-scale on silicon steel by weakening the adhesion of oxide scale to the substrate.

Publication Date


  • 2020

Citation


  • Wang, L., Tieu, A., Deng, G., Wang, J., Tran, B. H., Zhu, H. & Yang, J. (2020). In-situ interfacial tribochemistry toward eliminating red-scale of silicon steel in friction process. Tribology International, 143 106077-1-106077-11.

Scopus Eid


  • 2-s2.0-85075125479

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3380

Has Global Citation Frequency


Start Page


  • 106077-1

End Page


  • 106077-11

Volume


  • 143

Place Of Publication


  • United Kingdom