A bilayer coating has been synthesized to be coated on the 316L stainless steel (SS) for bone implant
application. The first layer consisted of graphene oxide (GO) which was coated via the electrophoretic
deposition method. The second layer including Poly(ε-caprolactone)(PCL)/Gelatin-forsterite
nanofibers was electrospun on the first layer. The morphology of the bare 316L SS, GO-coated,
electrospun nanofibers, and nanofibers-coated samples were investigated using scanning electron
microscopy (SEM). The electrospun nanofibers were also characterized by Fourier transform infrared
spectroscopy (FTIR) and confirmed the presence of PCL, gelatin, and forsterite in the nanocomposite
coating. Furthermore, the morphological investigation of the nanofibers revealed that 80:20 weight of
PCL to gelatin did not show any beads, making them for coating on the GO coatings. In addition, the
corrosion behavior of the coated samples was assessed by potentiodynamic polarization and
electrochemical impedance spectroscopy (EIS). The samples coated with GO and GO/PCL-gelatinforsterite 1% showed the best corrosion resistance in comparison with other samples. Consequently,
the prepared bilayer biocomposite coating including 1 wt% forsterite nanoparticles can be a promising
candidate for orthopedic implants.