شماره ركورد كنفرانس :
4742
عنوان مقاله :
Study of Morphology and Corrosion Resistance of Ni(nickel) Electroless Coating on Brass by Applying Various Parameters
پديدآورندگان :
Mahdavi Narges nargesmahdavi89@aut.ac.ir M. Sc. Student, Corrosion engineering and material protection department, Amirkabir University of Technology; , Sarabi Dariani Ali asghar sarabi@aut.ac.ir Associate Professor, Faculty of Polymer Engineering Color Technology, Amirkabir University of Technology;
كليدواژه :
Brass , Nickel Electroless Coating , Corrosion Resistance , Morphology , EIS
عنوان كنفرانس :
هفتمين كنفرانس بين المللي مهندسي مواد و متالورژي
چكيده فارسي :
Nickel- phosphorus coating were plated on Brass substrate from sulfate bath by electroless process. The effect of pH and stirring of solution were studied on corrosion behavior of plated substrate by potentiodynamic polarization (DC) and electrochemical impedance spectroscopy (EIS) methods in 3.5 w% of Nacl solution. Moreover, morphology and the chemical composition of plated samples were characterized by the field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDS). The results show that corrosion current density of coated samples in the pH of 4.8 obtained 1.47 µA cm_2 compared to uncoated substrate 4.79 µA cm_2. Also, coating resistance of coated samples obtained 31-32 kΩ.cm2 compared uncoated substrate 2.4 kΩ.cm2.
