Volume 35, Number 1 (Journal of Advanced Materials-Spring 2016)                   jame 2016, 35(1): 71-81 | Back to browse issues page



DOI: 10.18869/acadpub.jame.35.1.71

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Rajaei V, Raeissi K, Shamanian M, Rashtchi H. Electrodeposition and Characterization of Nanocrystalline Nickel- Molybdenum Alloy . jame. 2016; 35 (1) :71-81
URL: http://jame.iut.ac.ir/article-1-787-en.html

Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
Abstract:   (2035 Views)

In this study, Ni-Mo nanocrystalline alloys were prepared on steel substrates by electrodeposition method from citrate-ammonia bath by applying current densities 30, 60 and 100 mA/cm2. Results indicated that the obtained coatings were uniform and compact. Moreover, molybdenum content in the alloy and current efficiency decreased with increasing electrodeposition current density. X-ray diffraction analyses indicated that all coatings were composed of face-centered cubic solid solution of molybdenum in nickel with grain size of 9-5 nanometer. Moreover, the most intensive plane in X-ray diffragtogram was (111). On the othe hand, roughness measurements indicated that surface roughness escalated with increasing current density. Corrosion behavior study showed decrease in corrosion current density of substrate with applying Ni-Mo alloy coatings. In addition, corrosion current density reduced with increasing molybdenum content of the coating and the minimum amount was related to the coating with 13 atomic percent molybdenum.

Full-Text [PDF 1243 kb]   (446 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/06/14 | Accepted: 2016/06/14 | Published: 2016/06/14

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