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Development of electroless Ni–P modified aluminum substrates in a simulated fuel cell environment
Amani E. Fetohi,K.M. El-Khatib,R.M. Abdel Hameed 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
The corrosion resistance of electroless Ni–P coating on pure Al, Al 6061, Al 3004 and Al 1050 is examinedin an environment simulated to PEM fuel cell. Potentiodynamic polarization techniques, Interfacialcontact resistance, surface morphology, chemical composition of coated substrates and EISmeasurements have been investigated. Modified Al 1050 showed reduction in its corrosion currentdensity by 44.69 times. It also showed the best stability of all modified Al substrates. The formed Ni–Player on Al 1050 is thicker by about 3 times, relative to that on Al 6061 and has higher Ea value of135.68 kJ mol 1 supporting its lower corrosion rate.