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.

Concentration of a solution expressed in moles of solute divided by 1000 g of solvent.

Same as hydrogen embrittlement.

Between crystals or grains. Also called intercrystalline. Contrast with transgranular.

See electrical resistivity.

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

(1) Decomposition or alteration of a chemical substance by water. (2) In aqueous solutions of electrolytes, the reactions of cations with water to produce a weak base or of anions to produce a weak acid.

See transgranular.

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

The ability of a metal to absorb energy and deform plastically before fracturing.

Water that is free of magnesium or calcium salts.

Stress-corrosion cracking in which the cracking occurs along grain boundaries.

The spontaneous chipping, fragmentation, or separation of a surtace or surface coating.

Threshold stress-intensity factor for stress-corrosion cracking. The critical plane-strain stress intensity at the onset of stress-corrosion cracking under specified conditions.

The severe loss of ductility or toughness or both, of a material, usually a metal or alloy. Many forms of embrittlement can lead to brittle fracture. Many forms can occur during thermal treatment or elevated temperature service (thermally induced embrittl ...