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Materials science
The the study of matter and their applications in various areas of science and engineering.
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Materials science > Metallurgy ![](/template/termwiki/images/arrow_01.gif)
open-hearth process
Metals; Metallurgy
Process of making steel by heating the metal in the hearth of a regenerative furnace. In the basic open-hearth steel process, the lining of the hearth is basic, usually magnesite; ...
open surface
Metals; Metallurgy
Rough surface on black plate, sheet or strip, resulting from imperfection in the original steel bars from which the plate was rolled.
open-hearth furnace
Metals; Metallurgy
A reverberatory melting furnace with a shallow hearth and a low roof. The flame passes over the charge in the hearth, causing the charge to be heated both by direct flame and ...
olsen test
Metals; Metallurgy
A method of measuring the ductility and drawing properties of strip or sheet metal which involves determination of the width and depth of impression. The test simulating a deep ...
number as pertaining to hardness
Metals; Metallurgy
In copper base alloys inductry; temper is referred to as so many numbers hard, i.e. Yellow Brass Half Hard is termed 2 numbers hard. This term is derived from terminology used on ...
oil-hardening steel
Metals; Metallurgy
Steel adaptable to hardening by heat treatment and quenching in oil.
oil hardening
Metals; Metallurgy
A process of hardening a ferrous alloy of suitable composition by heating within or above the transformation range and quenching in oil.
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- Corrosion engineering (17347)
- Dynamic testing (1)
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- Magnetics (3118)
- Material physics (1772)
- Metallurgy (10306)