Glossary Corrosion: All Listings RSS

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See exfoliation corrosion.

A state of resistance to corrosion or anodic dissolution of a metal caused by thermodynamic stability of the metal.

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

A compound that causes oxidation, thereby itself being reduced.

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.

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.

See principal stress (normal).

A type of weld cracking that usually occurs below 203

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

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 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.

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

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.

PH

A measure of the acidity or alkalinity of a solution; The negative logarithm of the hydrogen-ion activity; it denotes the degree of acidity or basicity of a solution. At 25

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

See mixed potential.