Depositing filler metal on a surfsae by welding, spraying, or braze welding to increase resistance to abrasion, erosion, wear, galling. impact, or cavitation damage.

A fracture, usually of' polycrystalline metal, in which most of the grains have failed by cleavage, resulting in bright reflecting facets. It is associated with low-energy brittle fracture.

The severe loss of ductility of a metal resulting from corrosive attack, usually inter,granular and often not visually apparent.

The potential of an electrode in an electrolyte as measured against a reference electrode. The electrode potential does not include any resistance losses in potential in either the solution or external circuit. It represents the reversible work to move a ...

An experimental technique where by an electrode is maintained at a constant current in an electrolyte.

A reaction in which there is a decrease in valence resulting from a gain in electrons. Contrast with oxidation.

The maximum repeated stress that can he endured by a metal without failure under definite conditions of corrosion and fatigue and for a specific number of stress cycles and a specified period of time.

A list of metals and alloys arranged according to their relative corrosion potentials in a given environment. Compare with electromotive series.

Current that flows through the earth from an anodic to a cathodic area of a continuous metallic structure. Usually used only where the areas are separated by considerable distance and where the current results from concentration-cell action.

(1) Possessing a marked ability to accelerate the condensation of water vapor; applied to condensation nuclei composed of salts that yield aqueous solutions of a very low equilibrium vapor pressure compared with that of pure water at the same temperature. ...

A process of removing soil, scale, or corrosion products from a metal surface by subjecting it as an electrode to an electric current in an electrolytic bath.

See salt fog test.

Being or composed of hydrocarbons or their derivatives, or matter of plant or animal origin. Contrast with inorganic.

This potential, sometimes called zeta potential, is a potential difference in the solution caused by residual, unbalanced charge distribution in the adjoining solution, producing a double layer. The electrokinetic potential is different from the electrode ...

See auxiliary electrode.

The electric current that flows between metals or conductive nonmetal in a galvanic couple.

In a thermodynamic system of several constituents, the rate of change of the Gibbs function of the system with respect to the change in the number of moles of a particular constituent.

Surface discoloration of a metal caused by formation of a thin film of corrosion product.

Tendency of an environment to cause corrosion in a given corrosion system.

A graph or chart that shows constant corrosion behavior with changing solution (environment) composition and temperature.