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Electrodeposition of Ni-WndashB nanocomposite from tartrate electrolyte as alternative to chromium plating
, Article Surface Engineering ; Volume 25, Issue 5 , 2009 , Pages 382-388 ; 02670844 (ISSN) ; Abdolmaleki, M ; Seyed Sadjadi, S. A ; Raghibi Boroujeni, M ; Arshadi, M. R ; Khoshvaght, H ; Sharif University of Technology
2009
Abstract
The effect of the bath chemistry and operating conditions on the chemical composition, microstructure and properties of NiWmdashB alloys deposited from tartrate baths on working electrode was studied for the first time by the pulsed current method. The investigations included the measurement of the current efficiencies and determination of the tungsten content in the electrodeposits. UV spectrometry was used for characterisation of complex formation. The grain size of deposits was determined by XRD. Also, the morphology of the deposits was studied by SEM. Amorphous NimdashWB alloys were successfully obtained by electrodeposition from the tartrate bath. The corrosion behaviour of NiWmdashB...