An accelerated corrosion test in which specimens are exposed to a fine mist of a solution usually containing sodium chloride, but sometimes modified with other chemicals.

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 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 ...

Aging induced by rapid cooling after solution heat treatment.

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

Splitting (fracture) of a crystal on a crystallographic plane of' low index.

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

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

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

Ability of a metal to withstand corrosion in a given corrosion system.

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

(Galvanic Corrosion) Corrosion resulting from dissimilar metal contact.

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

A substance that produces depolarization.

A compound with a central atom or ion bound to a group of ions or molecules surrounding it. Also called coordination complex. See also chelate, complexation, and ligand.

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

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

An accelerated corrosion test for some electrodeposits for anodic coatings on aluminum.

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

A pair of dissimilar conductors, commonly metals, in electrical contact. See also galvanic corrosion.