Page 264 - Corrosion Engineering Principles and Practice
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238    C h a p t e r   7                                                                                       C o r r o s i o n   F a i l u r e s ,   F a c t o r s ,   a n d   C e l l s    239































                            (a)





























                               (b)
                      FIGURE 7.30  Experiments to illustrate the effects of stray current showing
                      (a) the experimental setup containing a DC power supply plus two steel nails
                      partially immersed in a dilute saline solution and connected to the positive
                      (left) and negative (right) posts of the DC supply; the effects of imposing a
                      DC current on the nails (b) after five and (c) ten minutes.
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