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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/8982

Title: TiN coatings modified by an interlayer of electroplated chromium on mild steel
Authors: SINGH, K
WASNIK, DN
GROVER, AK
TOTLANI, MK
SURI, AK
Keywords: electroless nickel
corrosion behavior
coated steel
performance
nitride
Issue Date: 1999
Publisher: INST METAL FINISHING
Citation: TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, 77(), 196-199
Abstract: TiN films on mild steel were deposited by reactive d.c. magnetron sputtering; electroplated chromium was incorporated as an interlayer. Surface hardness, measured by the Knoop indentation method under a load of 25 gf. phase analysis by the X-ray diffraction method and corrosion behaviour by the potentiodynamic measurement technique of these coatings have been evaluated. Surface hardness values were found to increase from about 1000-1100 for TiN coatings on mild steel to about 1800-1900 (HK25) for TiN coatings with chromium as interlayer. Potentiodynamic corrosion tests, performed in 1N H2SO4 solutions, have shown that with chromium interlayer the corrosion resistance increases significantly as compared to TiN only sputtered coatings on mild steel samples. No spalling of TiN coatings was observed during full sweep voltage of -1000 mV to +1000 mV when they were tested with a chromium interlayer.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/8982
http://hdl.handle.net/10054/8982
ISSN: 0020-2967
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