at each temperature the current density was set
at ∼30 A dm−2 and the electropolishing time was varied: 5,
10, 15, 20, 25 and 30 min. Fig. 1 shows the values of mass
loss for each sample as a function of the bath temperature,
for the different electropolishing times. For electropolishing
times less than 25 min there is a tendency for the mass loss