Effect of time depositions on electrodeposited cobalt-iron nanocoating

• Published in: Advanced Materials Research
• Main Author: Abdullah W.N.R.; Hyie K.M.; Resali N.A.; Chong W.T.
• Format: Conference paper
• Language: English
• Published: 2012
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84869486624&doi=10.4028%2fwww.scientific.net%2fAMR.576.565&partnerID=40&md5=94c6e99948ede6ea0983f294e9a748b2

Cobalt-Iron (CoFe) nanocrystalline coatings are successfully prepared in 30, 60 and 90 minutes time depositions using electrodeposition method. The effect of time deposition towards crystallographic structure, elemental composition, surface morphology, microhardness and corrosion behaviour of CoFe coatings were investigated. The CoFe nanocrystalline coatings were deposited on stainless steel substrate at pH 3 environment. The grain sizes of the coatings are in the range of 57.88 to 70.18 nm. The CoFe nanocrystalline coating prepared at 90 minutes deposition achieves the highest microhardness of 290 HV. This coating also exhibits the lowest corrosion rate with 1.086 mpy. It is found that the increment of time deposition improves the microhardness and corrosion behavior of CoFe nanocrystalline coatings. © (2012) Trans Tech Publications, Switzerland.