Sample preparation effects in the surface analysis of V/Ti alloys

Abstract The surface composition of V–21% Ti alloy as revealed by Auger electron spectroscopy becomes depleted in Ti on bombardment with 2‐kV argon ions. Alloy composition changes by preferential sputtering are frequently observed, but what is surprising in this case is that a steady‐state composition is not achieved until after ca. 8 h of sputtering. Experience with other alloy systems has been that steady state is attained in minutes; …