Fig. 1. For example, at 30 ◦C, brightness was
obtained after electropolishing times ≥25 min, while at 50 ◦C
it was obtained after only 5 min. From this figure one can
infer that the mass loss increases by about the same value
for each 5-min increase in the electropolishing time. For the
bath temperature of 45 ◦C, a linear relationship between mass
loss and electropolishing time is observed, corresponding to
a rate of mass loss of 0.32 g dm−2 min−1; in another words,
the mass loss after each 5 min of electropolishing is slightly
greater than 1.6 g dm−