Release of contained gas in the vaccum of outer space. eg. rapid destructive expansion of plastics and similar materials.

The movement of ions through the electrolyte associated with the passage of the electric current. Also called transport or migration.

The surroundings or conditions (physical, chemical, mechanical) in which a material exists.

Corrosion resulting from direct current flow through paths other than the intended circuit. For example, by an extraneous current in the earth.

Aqueous solution that contains 1 mole (gram-molecular weight) of solute in 1 L of the solution.

The reaction of a metal or alloy with a sulfur-containing species to produce a sulfur compound that forms on or beneath the surface on the metal or alloy.

The heavy oxide layer formed during hot fabrication or heat treatment of metals.

A metal in which the available electron energy levels are occupied in such away that the d-band contains less than its maximum number of ten electrons per atom, for example, iron, cobalt, nickel, and tungsten. The distinctive properties of the transition ...

The reciprocal of polarization resistance (di/dE).

Formation of isolated particles of corrosion products beneath a metal surface. This results from the prcferential reactions of certain alloy constituents to inward diffusion of oxygen, nitrogen, or sulfur.

Same as bipolar electrode.

Ferrire that is formed directly from the decomposition of hypoeutectoid austenite during cooling, without the simultaneous formation of cementite. Also called proeutectoid ferrite.

A chemical substance or combination of substances that, when present in the environment, prevents or reduces corrosion without significant reaction with the components of the environment.

Coating containing a zinc powder pigment in an inorganic vehicle.

Plastic deformation by the irreversible shear displacement (translation) of one part of a crystal relative to another in a definite crystallographic direction and usually on a specific crystallographic plane. Sometimes called glide.

The binding of an adsorbate to the surface of a solid by forces whose energy levels approximate those of condensation. Contrast with chemisorption.

(1) An arbitrarily defined temperature that lies within the temperature range in which metal fracture characteristics (as usually determined by tests of notched specimens) change rapidly, such as from primarily fibrous (shear) to primarily crystalline (cl ...

The technique for varying the potential of an electrode in a continuous manner at a preset rate.

A chain of organic molecules produced by the joining of primary units called monomers.

Molten slag; in the pulp and paper industry, the cooking chemicals tapped from the recovery boiler as molten material and dissolved in the smelt tank as green liquor.