Home > Blossary: Heat Treatment
Heat Treatment is the controlled heating and cooling of metals to alter their physical and mechanical properties without changing the product shape. Heat treatment is sometimes done inadvertently due to manufacturing processes that either heat or cool the metal such as welding or forming. Heat Treatment is often associated with increasing the strength of material, but it can also be used to alter certain manufacturability objectives such as improve machining, improve formability, restore ductility after a cold working operation. Thus it is a very enabling manufacturing process that can not only help other manufacturing process, but can also improve product performance by increasing strength or other desirable characteristics.

Category: Engineering

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Created by: Naveed

Number of Blossarys: 5

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In this process,the parts to be heat treated are immersed in a liquid bath at 800 to 960 degree of NaCN with the concentration varying between 25 and 90 percent.

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

Chromizing is also used for surface hardening of both carbon and tool steels.The components to be chromized are packed with fine chromium powder and additives.

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

This is the most widely used process for surface hardening of steels.It is carried out on low carbon steel which contain from 0.01 to 0.25 percent carbon and known as carburizing steels.

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

This process is specifically used for improving wear resistance of mild,plain carbon or very low alloy steels.Carbonitriding is carried out at low temperatures in the range 800 to 870 degree in a gas ...

Domain: Materials science; Education; Engineering; Category: Metallurgy; Knowledge; Mechanical engineering

Bronizing is one of the recent methods of surface hardening,which may be applied to any ferrous material but is generally adopted for carbon steel and tool steel.

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

Annealing,in general,involves heating to predetermined temperature,holding at this temperature,and finally cooling at a very slow rate.The temperature,to which steel is heated,and the holding time ...

Domain: Materials science; Engineering; Education; Category: Metallurgy; Mechanical engineering; Knowledge

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