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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48254

Title: Study on the Corrosion Behavior of Nanocrystalline Ni-P Electrodeposited Coating
Authors: H. B. Lee
D. S. Wuu
C. Y. Lee
C.S. Lin
Contributors: 國立臺灣海洋大學:光電與材料科技學系
Keywords: Corrosion Behavior
Passive Film
Corrosion Test
Corrosion Attack
Corrode Surface
Date: 2010-02
Issue Date: 2018-08-20T06:53:46Z
Publisher: Metallurgical and Materials Transactions A
Abstract: Abstract: The corrosion behavior of electrodeposited Ni-P coating in 5 pct (in weight) NaCl solution has been studied. The microstructure of the Ni-P electrodeposit displayed a layered structure composed of nanocrystalline grains revealed by transmission electron microscopy (TEM). With the increase in polarization potential and bath temperature, the corrosion rate as well as the weight loss was significantly increased. Under observation by a field-emission scanning electron microscope (FESEM), the pitting evolved into larger sizes with a diameter of approximately 30 μm as the temperature and potential were increased to 50 °C and 600 mVSCE, respectively. Cracks and delamination among the layered structure were found inside the deepened corrosion pit. The increase in surface P content and the trace of the formation of phosphate were also observed by using X-ray photoelectron spectroscopy (XPS) analysis.
Relation: 23(2) pp.103-110
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48254
Appears in Collections:[光電科學研究所] 期刊論文

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