OICC Press Journal of Theoretical and Applied Physics 2251-7235 19 1 2025 02 10 The effect of nitrogen ion implantation on electrical impedance and corrosion resistance of Aluminum 1 10 10.57647/j.jtap.2025.1901.11 EN Fatemeh Abdi Department of Engineering Sciences, Faculty of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Iran. https://orcid.org/0000-0001-5140-9621 Journal Article 2025 02 10 In this work, in order to investigate the effect of implantation temperature on the corrosion resistance of the sample, nitrogen ions with energy of 30 keV were implanted on the aluminum substrate at different implantation temperatures. The thickness of created aluminum nitride, surface morphology and intensity of nitride and oxide phases were investigated by means of XPS, AFM and XRD respectively. The results showed that the intensity of the oxide and nitride phases depend on the implantation temperature and as the intensity of the oxide phases increases, the intensity of the nitride phases decreases. Also, the results showed that there is a critical temperature where the intensity of the nitride phase is minimum and the surface has the smallest grains. To investigate the effect of implantation temperature on corrosion resistance, polarization and EIS tests were performed. The results showed that at the critical temperature, the corrosion current is maximum. By simulating the equivalent circuit, the cause of low corrosion resistance at this temperature was investigated and attributed to the low electrical impedance. Finally, the surface of the corroded samples was observed by electron microscopy.