Metals

Metals

Of or pertaining to any element, compound or alloy that conducts both heat and electricity.

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Metals > Metallurgy

grain size

Metals; Metallurgy

(1) For metals, a measure of the areas or volumes of grains in a polycrystalline material, usually expressed as an average when the individual sizes are fairly uniform. Grain ...

grain-boundary liquidation

Metals; Metallurgy

An advanced stage of overheating in which material in the region of austenitic grain boundaries melts. Also known as burning.

grain growth

Metals; Metallurgy

An increase in metallic crystal size as annealing temperature is raised; growth occurs by invasion of crystal areas by other crystals.

grain flow

Metals; Metallurgy

Fiber like lines appearing on polished and etched sections of forgings, caused by orientation of the constituents of the metal in the direction of working during forging.

grain coarsening

Metals; Metallurgy

A heat treatment that produces excessively large austenitic grains.

grain

Metals; Metallurgy

A solid polyhedral (or many sided crystal) consisting of groups of atoms bound together in a regular geometric pattern. In mill practice grains are usually studied only as they ...

grain boundary

Metals; Metallurgy

Bounding surface between crystals. When alloys yield new phases (as in cooling), grain boundaries are the preferred location for the appearance of the new phase. Certain ...