Modifying the TiAlZr biomaterial surface with coating, for a better anticorrosive and antibacterial performance

► A new composite for biomedical applications was elaborated by coating TiAlZr with Ag nanoparticles. ► The morphological and elemental analysis of Ag nanoparticles on the TiAlZr surface were performed with scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS). ► The better electrochemical performance of the coating (compared with polished TiAlZr) was evaluated from dynamic polarization tests. ► Antibacterial activity was evaluated on the basis of the inhibition of the growth of Escherichia coli bacteria.