Comparison and Evaluation of Nickel Boron Electroless Corrosion Behavior at Different Thicknesses on Copper Substrate
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ICAC-10-38_001
تاریخ نمایه سازی: 5 آذر 1402
Abstract:
Researchers and industries have considered Electroless nickel boron coatings due to their appropriate corrosion and wear properties. In this study, the effect of thickness on corrosion behavior of the nickel-boron electroless coating was evaluated before and after heat treatment. The coating was performed in three different thicknesses of ۴۰, ۲۰ and ۶۰ micrometers. The samples were heat treated at ۴۵۰ ° C for one hour. Scanning electron microscopy was used to evaluate the coating surface. Potentiodynamic polarization and electrochemical impedance spectroscopy tests were used to study the corrosion behavior. The results showed that the coated sample with a thickness of ۴۰ microns after heat treatment shows better corrosion behavior than other samples. SEM images obtained from the surface of produced coatings showed the larger cauliflower-type structure having better corrosion behavior due to fewer grain boundaries.
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پگاه قاسمی زاده
دانشگاه صنعتی اصفهان
عبدالمجید اسلامی
دانشگاه صنعتی اصفهان
محمدعلی گلعذار
دانشگاه صنعتی اصفهان