The mass of unit volume of a material at a specified temperature.

The destruction of adhesion between a coating and the surface coated.

An anode that is insoluble in the electrolyte under the conditions prevailing in the electrolysis.

A thin, tightly adhering oxide skin (only a few molecules thick) that forms when steel is tempered at a low temperature, or for a short time, in air or a mildly oxidizing atmosphere. The color, which ranges from straw to blue depending on the thickness of ...

The number of cycles of stress that can be sustained prior to failure under a stated test condition.

Foreign substance which comes from the environment, adhering to a surface of a material

A decrease in the polarization of an electrode; the elimination or reduction of polarization by physical or chemical means; depolarization results in increased corrosion.

The rate of crack extension caused by constant-amplitude fatigue loading, expressed in terms of crack extension per cycle of load application.

A visible corrosion product consisting of hydrated oxides of iron. Applied only to ferrous alloys. See also white rust.

A cell developed in an electrolyte resulting from electrical contact between two dissimilar metals. See galvanic corrosion.

The maximum current density that can be used to obtain a desired electrode reaction without undue interference such as from polarization.

A network of checks or cracks appearing on the surface.

A substance that produces depolarization.

The ratio of the electrochemical equivalent current density for a specific reaction to the total applied current density.

Separation of a solid accompanied by little or no macroscopic plastic deformation. Typically, brittle fracture occurs by rapid crack propagation with less expenditure of energy than for ductile fracture.

An imprecise term used to denote a treatment given cold-worked material to reduce its strength to a controlled level or to effect stress relief. To be meaningful, the type of material, the degree of cold work, and the time-temperature schedule must be sta ...

The net transfer of electric charge per unit time. Also called electric current. See also current density.

The current flowing to or from a unit area of an electrode surface, generally expressed as amps per sq ft or milliamperes per sq ft (also milliamps per sq cm, etc).

See chemical vapor deposition, physical vapor deposition and sputtering.

In austenitic stainless steels the precipitation of chromium carbides, usually at grain boundaries, on exposure to temperatures of about 550 to 850