The fracture toughness determined under dynamic loading conditions; it is used as an approximation of KIc for very tough materials.

A measure of proportion by weight, equivalent to one unit weight of a material per million (106) unit weights of compound. One part per million is equivalent to l mg/g

(1) Injection of air or water under high pressure through a tube to the anode area for the purpose of purging the annular space and possibly correcting high resistance caused by gas blocking. (2) In connection with boilers or cooling towers, the process o ...

The potential difference at the junction of two dissimilar substances.

A wood-pulping process in which sodium sulfate is used in the caustic soda pulp-digestion liquor. Also called kraft pulping or sulfate pulping.

The weight of an element or group of elements oxidized or reduced at 100~ efficiency by the passage of a unit quantity of electricity. Usually expressed as grams per coulomb.

See principal stress (normal).

Provisional value for plane-strain fracture toughness.

Plating with dummy cathodes.

Coating containing zinc powder pigment andan organic resin.

The condition of being electrically separated from other metallic structures or the environment.

Whitening and loss of gloss of a usually organic coating caused by moisture. Also called blooming.

A strongly alkaline solution into which metal is immersed for etching. for neutralizing acid, or for removing organic materials such as greases or paints.

The formation of complex chemical species by the coordination of groups of atoms termed ligands to a central ion, commonly a metal ion. Generally, the ligand coordinates by providing a pair of electrons that forms an ionic or covalent bond to the central ...

A technique commonly used to prepare metallographic specimens, in which a high polish is produced by making the specimen the anode in an electrolytic cell, where preferential dissolution at high points smooths the surface.

An obsolete historical term denoting a form of stress-corrosion cracking most frequently encountered in carbon steels or iron-chromium-nickel alloys that are exposed to concentrated hydroxide solutions at temperatures of 200 to 250

The potential of a metal surface necessary to decompose the electrolyte of a cell or a component/substance thereof.

A metallic connection that provides electrical continuity between metal structures.

Corrosion resulting from a cathodic condition of a structure usually caused by the reaction of an amphoteric metal with the alkaline products of electrolysis.

A metal plating process wherein the plating current is provided by galvanic action between the work metal and a second metal, without the use of an external source of current.