Solid particle erosion behavior of nanolaminated Cr2AlC films

This paper presents a comparative study of the fundamental erosion mechanism of IN718 and of the recently developed material system, IN718 + Cr2AlC MAX phase coating (7 µm and 20 µm). It is found, that erosion proceeds in four stages. Moreover, the measured erosion rate by means of laboratory particles erosion tests has shown an up to fourfold lifetime improvement of the coated system as compared to the uncoated counterpart.