Page 187 - Corrosion Engineering Principles and Practice
P. 187
162 C h a p t e r 6 R e c o g n i z i n g t h e F o r m s o f C o r r o s i o n 163
FIGURE 6.17 Stainless-steel cavernous pits formed on S30400 stainless steel
following an intergranular corrosion attack. (Courtesy of Russ Green, TMI)
FIGURE 6.18 Density Size Depth
Rating charts
that eliminate
tedious counting 1
of pitting sites.
2,500/m 2 0.5 mm 2 0.4 mm
2
10,000/m 2 2.0 mm 2 0.8 mm
3
50,000/m 2 8.0 mm 2 1.6 mm
4
100,000/m 2 12.5 mm 2 3.2 mm
5
500,000/m 2 24.5 mm 2 6.4 mm
