Electroplating and characterization of Cr–Al2O3nanocomposite film from a trivalent chromium bath

Mohsen Salehi Doolabi, Sayed Khatiboleslam Sadrnezhaad, Davood Salehi Doolabi
  • Anti-Corrosion Methods and Materials, May 2014, Emerald
  • DOI: 10.1108/acmm-12-2012-1227

Cr–Al2O3nanocomposite film from a trivalent chromium bath

What is it about?

Addition of nano-size Al2O3 to Cr film from an environment-friendly trivalent chromium bath improves wear resistance and strength of the coating.

Why is it important?

Environment protection Good Cr coating


S.K. Sadrnezhaad
Sharif University of Technology

Cr (III) is not as toxic and as carcinogenic as Cr (VI) which is widely used for Cr electroplating these days. Low current efficiency and poor product quality are, however, major drawbacks of the former. This paper describes significant improvements obtainable by addition of Al2O3 nanoparticles to the Cr (III) bath for increasing the microhardness, the corrosion resistance and the current efficiency of the deposition.

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The following have contributed to this page: S.K. Sadrnezhaad

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