A tendency for some alloys to separate along grain boundaries when stressed ordeformed at temperatures near the melting point.Hot shortness is caused by a low-melting constituent, often present only in minute amounts,that is segregated at grain boundaries ...

Deep internal cracks caused by hydrogen.

The component of either a liquid or solid solution that is present to a greater or major extent; the component that dissolves the solute.

Resin formed from reactions involving furfuryl alcohol alone or in combination with other constituents.

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

See hydrogen embrittlement.

See galvanostatic.

The formation of isolated particles of corrosion products beneath the metal surface. This occurs as the result of preferential oxidation of certain alloy constituents by inward diffusion of oxygen, nitrogen, sulfur, and so forth.

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

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

See hydrogenembriltlement.

See intergranular corrosion.

The technique for maintaining a constant electrode potential.

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

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

See electrical resistivity.

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

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.

Reduction in mechanical properties of a metal as a result of local penetration of solder along grain boundaries.

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.