The Effects of the Aging Temperature on the Microstructure and Corrosion Resistance of the Nickel-Phosphorus Composite Al₂O₃ Deposit

Abstract:

In this Paper, electroless nickel-phosphorus composite of Al₂O₃ deposit is prepared by chemical plating on 45 steel. Surface topography, microstructure and major elements are analyzed by SEM, EDS and XRD. The results show that the deposit is compact and the binding of the coating interface is very good. It is found that the microstructure of deposit is amorphous and after heat treatment is crystalline. Corrosion test showed that the coating's corrosion resistance is related to heat treatment temperature. It exhibits better corrosion resistance at annealing temperature of 250°C.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 101-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.101
• Online since: November 2012
• Authors: Li Ming Lian, Fang Fang Yan
• Keywords: Aging Treatment, Al₂O₃ Particle, Electroless Composite Deposit

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