Influence of the Chemical Composition in the Electrochemical Response of Permanent Magnets

Figure 13

Superficial aspects of Nd magnets after corrosion tests for 24 hours in 3.5% NaCl solution at 25°C: (a) 35Nd, (b) 40Nd, and (c) 40Nd3Co.

(a)

(b)

(c)