The corrosion properties of the Fe45−xCr18Mo14C15B6Y2Mx (with M=Al, Co, Ni, N and x=0, 2) bulk metallic glasses have been investigated in a 1M H2SO4+2ppm F− solution at 80°C with H2 and air bubbling, which simulate environments of the polymer electrolyte membrane fuel cell. The partial replacement of 2at.% Fe led to significant modification of the corrosion behavior and resulted in corrosion resistances superior to that of stainless steel.