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Electrodeposition of Fe-ni Alloy Foil

Author: ZhangYuBin
Tutor: HeFengZuo
School: Hunan University
Course: Analytical Chemistry
Keywords: Complexing agent Electrodeposition FeNi alloy Corrosion resistance Electrochemical impedance spectroscopy
CLC: TQ153.2
Type: Master's thesis
Year: 2009
Downloads: 151
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Abstract


Electrodeposited iron-nickel alloy coating with good mechanical properties , soft magnetic properties , corrosion resistance , electrical properties and mechanical properties , has been widely used in the industrial field ; With the advancement of science and technology , many high-tech areas of need the material toward light, thin direction , the electrodeposition method is a cheap and practical preparation of thin film methods . Iron-nickel alloy is not only saving part of the nickel coating performance is better than that of pure nickel coating ; discovered through the use of the alloy films in iron-nickel alloy film is a very broad application prospects . The complex electroplating and metal deposition are inseparable , and the choice of a suitable complexing agent to get a good coating and promote industrialization prerequisite . This article will use appropriate complexing agent electrodeposited iron-nickel alloy thin films can be continuous preparation of iron-nickel alloy with excellent performance peelable strip . Based on the above considerations , the electrodeposited iron-nickel alloy film study , a detailed examination of the conditions of the electrodeposited alloy films ; apparent alloy films , structure and corrosion resistance ; simultaneously electrodeposited iron-nickel alloy mechanism speculate . The specific research work of the paper is as follows: 1 . Study the process of electrodeposited iron-nickel alloy . By changing a single factor experiments , a detailed study of the ferrous ion content of the solution , cathode rotation speed , the pH of the solution , the temperature of the solution , complexing agent content , boric acid content and the current density of the alloy thin films of iron content and current efficiency and to study the stability of the solution , so as to continuously electrodeposited iron-nickel alloy foil provides an experimental basis . The peeling iron-nickel alloy thin film obtained in the electrodeposition of the apparent structural characterization , and alloy films in 3.5% sodium chloride solution , the application of polarization curves , impedance spectroscopy and corrosion weight loss method to study , and the mechanism is discussed. Using electrochemical methods ( polarization curves and impedance spectroscopy ) to study the electrodeposition of nickel and iron-nickel alloy , and reference reports speculated that the iron-nickel electrodeposition reaction course .

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CLC: > Industrial Technology > Chemical Industry > Electrochemical industries > Electroplating industry > Alloy plating
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