382
Index
low-alloy, 104
protective coating before insulation,
352
resistance to pitting, 42
SCC in, 47
Carbonate precipitation, 322
Carbonic acid, 134
Cast iron
resistance to erosion corrosion, 45
selective leaching, 57
Cast zinc alloys, corrosion resistance,
112
Cathodes, 6, 36
Cathodic control protection, 255, 262,
263, 278
aluminum coatings, 289
cadmium coatings, 289–290
manganese coatings, 290
by sacrificial metal coatings, 277–290
Cathodic delamination, under organic
coatings, 216
Cathodic electrodeposition, 236
Cathodic inhibitors, 317
Cathodic overpotential, 257
Cathodic polarization curve, 15, 20, 257
effects of corrodent velocity on, 24
Cathodic protection, 6, 54, 57, 75, 297–298
anode materials and backfill,
303–306, 304–305
with copper alloys, 376
copper-zinc cell polarization
example, 238, 239
current requirements, 304
for Galfan and galvanized coatings,
287
in gas industry, 372
graphite anodes in, 303
impressed current, 299, 303–304
local action cell, 239
in marine industry, 374
pipeline industry, 373
platinum-clad electrodes in, 303
sacrificial anodes, 300–302
scrap iron use in, 303
and Sunde equation, 302
theory, 298–306
use with coatings, 306–307
in water treatment and supply
systems, 370
Cathodic reaction resistance, 258
Cathodic Tafel coefficients, 260
Cationic inhibitors, 315
Caustic embrittlement, 46
Cavitation, 45, 46, 324
in ceramics, 143–144
Cell potentials, 7–8
Cellular glass, 345
as insulation material, 347
Centrifugal casting, 233
Ceramics
atmospheric corrosion resistance, 146
corrosion of specific, 145
corrosion resistance, 141–143
forms of corrosion, 143–145
Chalking, 207, 210
Chelating agents, for near-neutral
solutions, 323
Chemical disbondment, 215
Chemical equipment, cathodic
protection in, 298
Chemical failures, 213
Chemical industry, 356
coverings and liners, 357
design improvements, 358
environmental changes, 357
inhibitors, 357
materials selection, 356
regular inspection and improved
techniques, 358
specifications for purchasing and/or
contractors, 358
Chemical processing, MIC in, 53
Chemical treatment, plastic substrate
preparation, 227–228
Chemically resistant pigments, 202
Chemisorption, in acid solution, 320
Chemotrophs, energy source, 51
Chloride attack, 330
minimizing in insulation systems,
343
reducing risk in marine industries,
376
Chlorides
and atmospheric corrosion of zinc,
110
effects on steel corrosion, 315
in surface electrolyte, 84
Chlorine compounds
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