Corrosion behaviors of Fe_(45-x)Cr_(18)Mo_(14)C_(15)B_6Y_2M_x (M = Al, Co, Ni, N and x = 0, 2) bulk metallic glasses under conditions simulating fuel cell environment

摘要

The corrosion properties of the Fe_(46-x)Cr_(18)Mo_(14)C_(15)B_6M_x (with M = Al, Co, Ni, N and.x = 0, 2) bulk metallic glasses have been investigated m a 1 M H_2SO_4 + 2 ppm F~- solution at 80 °C with H_2 and air bubbling, which simulate environments of the polymer electrolyte membrane fuel cell. The partial replacement of 2 at.% Fe led to significant modification of the corrosion behavior and resulted in corrosion resistances superior to that of stainless steel.