The range of the stress-intensity factor during a fatigue cycle.

An electrode commonly used in polarization studies to pass current to or from a test electrode, usually made of noncorroding material

The potential corresponding to the maximum active current density (critical anodic current density) of an electrode that exhibits active-passive corrosion behavior.

A term primarily used in Europe to describe galvanic corrosion between dissimilar metals.

See gaseous corrosion.

Localized corrosion of a metal surface at, or immediately adjacent to, an area that is shielded from full exposure to the environment because of close proximity between the metal and the surface of another material.

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 ...

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

(1) The amount of any substance dissolved or deposited in electrolysis is proportional to the total electric charge passed. (2) The amounts of different substances dissolved or deposited by the passage of the same electric charge are proportional to their ...

Fracture characterized by tearing of metal accompanied by appreciable gross plastic deformation and expenditure of considerable energy. Contrast with brittle fracture.

The degradation of a solid body resulting from its exposure to cavitation. This may include loss of material, surface deformation, or changes in properties or appearance.

A positively charged ion that migrates through the electrolyte toward the cathode under the influence of a potential gradient. See also anion and ion.

A period prior to the detection of corrosion while the metal is in contact with a corrodent.

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

A process in which metal ions in a dilute aqueous solution are plated out on a substrate by means of autocatalytic chemical reduction.

An agent or combination of agents added to an electroplating bath to produce a smooth, lustrous deposit.

The portion of solution in immediate contact with the cathode during electrolysis.

The part of the total carbon in steel or cast iron that is present as other than free carbon.

A metastable lamellar aggregate of ferrite and cementite resulting from the transformation of austenite at temperatures above the bainite range.

The process in which a metal fractures prematurely under conditions of simultaneous corrosion and repeated cyclic loading at lower stress levels or fewer cycles than would be required in the absence of the corrosive environment.