Electroplating tin on an object.

The positive direction of electrode potential, thus resembling noble metals such as gold and platinum.

See cathodic protection.

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 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

A list of metals and alloys arranged according to their relative corrosion potentials in a given environment. Compare with electromotive series.

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.

One of the group of l5 chemically similar metals with atomic numbers 57 through 7l, commonly referred to as the lanthanides.

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

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.

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.

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

(1) A molecular structure in which a heterocyclic ring can he formed by the unshared electrons of neighboring atoms. (2) A coordination compound in which a heterocyclic ring is formed by a metal bound to two atoms of the associated ligand. See also comple ...

Chromium plated for engineering rather than decorative applicactions.

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

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

The severe loss of ductility of a metal resulting from corrosive attack, usually inter,granular and often not visually apparent.

An electrode immersed in a suitable electrolyte, designed for measurements of electrode potential; A pure metal in contact with a solution of known concentration of its own ion, at a specific temperature develops a potential which is characteristic and re ...

A chemical compound with one or more carboxyl radicals (COOH) in its structure; examples are butyric acid, CH3(CH2)2COOH; maleic acid, HOOCCH-CHCOOH; and benzoic acid, C6H5COOH.

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