Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2010, Vol. 31 ›› Issue (6): 856-859.DOI: -

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Effect of different TFS black sheets on surface morphology and corrosion resistance of TFS products

Li, Jian-Zhong (1); Zhou, Geng-Rui (2); Huang, Jiu-Gui (2); Tian, Yan-Wen (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Steel Sheet Cold Rolling Plant, Baosteel Co., Ltd., Shanghai 200431, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-06-15 Published:2013-06-20
  • Contact: Li, J.-Z.
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Abstract: Effect of the metallographic structures of CA, BA and DR black sheets on the surface morphology of TFS products was investigated via metalloscope and SEM. In addition, the corrosion resistance of TFS products was evaluated by the iron solubility values and electrochemical polarization curves. The results showed that in the compact surface Cr-coating of BA black sheet with low porosity the grains are larger and coarser in comparison with that of CA sheet, while the evident microcracks are found in the surface Cr-coating of DR sheet. And the corrosion resistance of T2.5-BA Cr-coating sheet is higher than that of CA and DR sheets under the same schedules. As to the TFS products with CA black sheets, the more frequent the modulations, the lower the corrosion resistance.

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