A corrosion of the grain boundaries in the body of the material.
A preferential attack at the grain boundaries. In the case of austenitic stainless steels (300 series) the formation of chromium carbides in the grain boundaries at elevated temperatures depletes the chromium content at the surface of each grain. This leaves the areas around the grains susceptible to certain types of corrosion.
Corrosion occurring preferentially at grain boundaries, usually with slight or negligible attack on the adjacent grains. Also called intercrystalline corrosion.
Preferential corrosion at or adjacent to the grain boundaries of a metal or alloy. Internal oxidation The formation of isolated particles of corrosion products beneath the surface of the metal or coating. (This occurs as a result of preferential oxidation of certain alloy constituents by inward diffusion of oxygen, nitrogen, sulphur, etc. Kerosene Liquid fuel used in some HVOF thermal spray processes .
Preferential corrosion cracking at or along the grain boundaries of a metal.
Intergranular corrosion (IGC), also termed intergranular attack (IGA), is a form of corrosion where the boundaries of crystallites of the material are more susceptible to corrosion than their insides. (Cf. transgranular corrosion.)