The process of enhancing a gemstone to give it a more desirable color (or to remove flaws) by subjecting it to very high temperatures.

 - Using a range of temperatures to alter the properties and behaviour of metals before, during and after working. Eg: annealling, normalising, hardening

diathermy

Heating and cooling of a solid metal or alloy in such a way to achieve the desired microstructural/mechanical properties.

A combination of heating and cooling operations applied to a metal or alloy to produce desired properties and microstructures.

Process for increasing the mechanical properties (strength, hardness) of steel and some non-ferrous metals. See also annealing.

This involves the heating and then cooling of metal, and is used to alter steel

The process of heating and cooling a solid metal or alloy to obtain certain desired properties or characteristics.

An operation or combination of operations involving the heating and cooling of a metal or alloy in the solid state to attain certain desired microstructure or properties.

the heating and cooling of metals to modify their mechanical properties

A method of enhancing the colour of gemstones by heating them to a very high temperature

the heating and cooling of metals to modify their mechanical properties

Altering the properties of a metal by subjecting it to a sequence of temperature changes, time of retention at specific temperature and rate of cooling therefore being as important as the temperature [..]

The process of heating and cooling a metal throughout a temperature range for the purpose of obtaining certain desired mechanical or physical properties.

Heating and cooling a metal or alloy in such a way as to obtain desired conditions or properties.

The term heat treatment refers to a group of production processes in which a material (metal, ceramic, plastic) undergoes one or more treatment stages involving temperature changes or temperature sequ [..]

During Heat treatment, the properties of Steel are changed through thermal, chemicothermal or mechanothermal processes so as to optimise them. A distinction is made between processes that change the m [..]