Aluminum-based coatings were prepared by flame spraying.After remelting and diffusion treatment,the phase,composition,friction and corrosion resistance were analyzed experimentally by using scanning electron microscopy,X-ray diffraction,energy dispersive spectrometer,wear tester.The results indicate that the surface phase consists of Al and FeAl_3,inner layer phase mainly contains FeAl_3 and Fe_2Al_5.The coating has higher micro-hardness than the underlying material,with a maximum of up to HV 950.In an expe...