Any of various functions from which intensity or velocity at any point in a field may be calculated. The driving influence of an electrochemical reaction. See also active potential, chemical potential, corrosion potential, critical pitting potential, deco ...

See Pourbaix (potential-pH) diagram.

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

An instrument for automatically maintaining an electrode in an electrolyte at a constant potential or controlled potentials with respect to a suitable reference electrode.

The technique for maintaining a constant electrode potential.

A term used in the automotive industry to describe the corrosion of vehicle body parts due to the collection of road salts and debris on ledges and in pockets that are kept moist by weather and washing. Also called deposit corrosion or attack.

A plot of the redox potential of a corroding system versus the pH of the system, compiled using thermodynamic data and the Nernst equation. The diagram shows regions within which the metal itself or some of its compounds are stable.

The art of producing metal powders and utilizing metal powders for production of' massive materials and shaped objects.

One of the relatively scarce and valuable metals: gold, silver, and the platinum-group metals. Also called noble metal(s).

Hardening caused by the precipitation of a constituent from a supersaturated solid solution. See also age hardening and aging.

Artificial aging in which a constituent precipitated from a supersaturated solid solution.

A specimen that is notched and subjected to alternating stresses until a crack has developed at the root of the notch.

The current distribution in an electrolytic cell that is free of polarization.

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

The first coat of paint applied to a surface. Formulated to have good bonding and wetting characteristics; may or may not contain inhibiting pigments.

The maximum or minimum value at the normal stress at a point in a plane considered with respect to all possible orientations of the considered plane. On such principal planes the shear stress is zero. There are three principal stresses on three mutually p ...

Anchor pattern on a surface produced by abrasive blasting or acid treatment.

The threshold value of the corrosion potential that has to be reached to enter a protective potential range. The term used in cathodic protection to refer to the minimum potential required to supress corrosion.

A range of corrosion potential values in which unacceptable corrosion resistance is achieved for a particular purpose.

Aging induced by rapid cooling after solution heat treatment.