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.

A composite metal containing, two or more layers that have been bonded together. The bonding may have been accomplished by co-rolling, co-extrusion, welding, diffusion bonding, casting, heavy chemical deposition, heavy electroplating, or explosive claddin ...

A change in any part of the corrosion system caused by corrosion.

See exfoliation corrosion.

Threshold stress intensity for stress-corrosion cracking. The critical stress intensity at the onset of stress-corrosion cracking under specified conditions.

An atmosphere in an area of heavy industry with soot, fly ash, and sulfur compounds as the principal constituents.

Heating a metal or alloy to such a high temperature that its properties are impaired. When the original properties cannot be restored by further heat treating, by mechanical working, or by a combination of working and heat treating, the overheating is kno ...

The potential of a corroding surface in an electrolyte, relative to a reference electrode. Also called rest potential, open circuit potential, or freely corroding potential.

A general term used to imply that a part in service (1) has become completely inoperable, (2) is still operable but is incapable of satisfactorily performing its intended function, or (3) has deteriorated seriously, to the point that it has become unrelia ...

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

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 liquid material remaining from pulpwood cooking in the soda or sulfate paper-making process.

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

An aqueous solution containing one gram equivalent of the active reagent in 1L of the solution.

A form of deterioration that is distributed more or less uniformly over a surface; See uniform corrosion.

The molecule, ion, or group bound to the central atom in a chelate or a coordination compound.

Coal tar or asphalt-based coating.

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.

Corrosion that occurs under some coatings in the form of randomly distributed threadlike filaments.

Deposition of a metal or compound on a heated surface by reduction or decomposition of a volatile compound at a temperature below the melting points of the deposit and the base material. The reduction is usually accomplished by a gaseous reducing agent su ...