In this study, hardness and wear resistance of electroless Ni–P and Ni–P/Al2O3 composite coating have been investigated. These composite coatings are applied on iron substrate by electroless deposition process and then they were heat treated at 400°C for 1h. Surface and cross-section morphology of composite deposits have been investigated by scanning electron microscopy (SEM) and microstructural changes were evaluated by X-ray diffraction (XRD) analysis. The results showed that the Al2O3 particles co-deposited in Ni–P matrix led to an increase in the hardness and improve wear resistance, especially when the heat treated at 400°C will have the maximum hardness and wear resistance.
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