The synergistic effect of simultaneous mechanical wear, chemical/electrochemical corrosion (tribocorrosion) and microbial attack poses a serious threat to marine coastal infrastructure. To address this important problem, we have developed composite coatings consisting TaC (25–35 at.%) corrosion-resistant α-Fe(Cr,Ni,Mo)-based metal matrix, as well bactericidal elements (Cu, Ag). Coatings 50–75 μ...