i.e.blistering and flaking behaviour of amorphous alloys Fe77B16Si5Cr2
Ni78B14Si8
etc.under helium ions bombardment have been investigated by scanning election microscope.The results show a dependence of the surface erosion mode on dose rate.Thickness of blistering is equal to the mean projected range
while that of nabing is less than the range. The gas driven model and the lateral stress driven model were used to explain the mechanism of blistering and flaking