Define : Austenite, Ferrite,Cementite

Question

Define : Austenite, Ferrite,Cementite

Answer 1

www.answers.com/topic/austenite

use them or wilkipedia.com. you will see the definitions there.

They are too long too type out here.

Answer 2

Austenite (or gamma phase iron) is a metallic non-magnetic solid solution of iron and an alloying element. In plain-carbon steel, austenite exists above the critical eutectoid temperature of 1000 K (about 727 °C); other alloys of steel have different eutectoid temperatures. It is named after Sir William Chandler Roberts-Austen

Ferrite or alpha iron (α-Fe) is a materials science term for iron, or a solid solution with iron as the main constituent, with a body centred cubic crystal structure. It is the component which gives steel and cast iron their magnetic properties, and is the classic example of a ferromagnetic material.

Cementite or iron carbide is a chemical compound with the formula Fe3C (or Fe2C:Fe), and an orthorhombic crystal structure. It is a hard, brittle material, normally classified as a ceramic in its pure form, though it is more important in metallurgy.

Answer 3

http://en.wikipedia.org/wiki/Austenite

http://en.wikipedia.org/wiki/Ferrite_%28...

http://en.wikipedia.org/wiki/Cementite