The PTFE-containing PEO (PTFE/PEO) composite coating is fabricated on aluminium alloy by the one-step
method. The composite coating integrates the advantages of wear resistance of PEO coating and a low friction
coefficient and excellent corrosion resistance of polytetrafluoroethylene. Inspection of SEM, XRD and FT-IR analysis
indicates that PTFE nanoparticles could effectively seal the pores of the PEO coating. The PTFE/PEO composite
coating exhibits good tribological properties. And the potentiodynamic polarization and salt spray tests reveal
that the composite coating was successful in providing superior corrosion resistance to aluminium alloy.