The dependence of surface damage of amorphous alloys Co60Fe12Ni10Si6B12 and Fe39Ni39V2Si12B8 irradiated with 195keV argon ions on the ion dose has been investigated by using scanning electron microscope.Surface damages such as blistering and sputtering were observed.At low dose blistering was dominant
but at higher dose blisters disappered and a porous structure was developed as the result of sputtering.The reasons for disappering of blisters at high dose were also discussed in detail.