The technique for maintaining a constant electrode potential.

See galvanostatic.

Ratio of the depth of the deepest pit resulting from corrosion divided by the average penetration as calculated from weight loss.

Corrosive attack that progresses preferentially along interdendritic paths. This type of attack results from local differences in composition, such as coring commonly encountered in alloy castings.

Through or across crystals or grains. Also called intracrystalline or transcrystalline.

Aging induced by cold working.

Cracking or fracturing that occurs between the grains or crystals in a polycrystalline aggregate. Also called intercrystalline cracking. Contrast with transgranular cracking.

Electrode potential where half-cell reaction involves only the metal electrode and its ion.

See hydrogen embrittlement.

See hydrogenembriltlement.

Changes in contour or discontinuities in structure that cause local increases in stress.

The liquor resulting from dissolving molten melt irom the kraft recovery furnace in water. See also kraft process and smelt.

Water that is free of magnesium or calcium salts.

Deep internal cracks caused by hydrogen.

In fatigue, the variation in the stress-intensity factor in cycle, that is, Kmax-Kmin.

The swelling or bubbling of a coating usually because of heating (term currently used in space and fire protection applications).

See hydrogen embrittlement.

Perforation of material in outer space resulting from meteor strikes.

See intergranular corrosion.

A gaseous environment containing hydrogen sulfide and carbon dioxide in hydrocarbon reservoirs. Prolonged exposure to sour gas can lead to hydrogen damage, sulfide-stress cracking, and/or stress-corrosion cracking in ferrous alloys.