System consisting of one or more metals and all parts of the environment that influence corrosion.

See exfoliation corrosion.

The chemical or electrochemical reaction between a material, usually a metal, and its environment that produces a deterioration of the material and its properties.

Electroplating tin on an object.

Depositing a metallic coating on a metal immersed in a liquid solution, without the aid of an external electric current. Also called dip plating.

Corrosion which is increased because of the abrasive action of a moving stream; the presence of suspended particles greatly accelerates abrasive action.See erosion-corrosion.

See principal stress (normal).

A type of weld cracking that usually occurs below 203

A compound that causes oxidation, thereby itself being reduced.

An assembly, consisting of a vessel, electrodes, and an electrolyte, in which electrolysis can be carried out.

A fracture, usually of' polycrystalline metal, in which most of the grains have failed by cleavage, resulting in bright reflecting facets. It is associated with low-energy brittle fracture.

The potential of a reversible oxidation-reduction electrode measured with respect to a reference electrode, corrected to the hydrogen electrode, in a given electrolyte.

A reference electrode composed of mercury, mercurous chloride (calomel), and a saturated aqueous chloride solution.

Particles of foreign material in a metallic matrix. The particles are usually compounds (such as oxides, sulfides, or silicates), but may be of any substance that is foreign to (and essentially insoluble in) the matrix.

Deterioration of metals as a result of the metabolic activity of microorganisms.

That portion of the polarization of a cell produced by concentration changes resulting from passage of' current through the electrolyte.

Modification of a corrosion system so that corrosion damage is mitigated.

See mixed potential.

A reaction in which there is a decrease in valence resulting from a gain in electrons. Contrast with oxidation.

To coat a metal surface with zinc using any of various processes.