Martensite

Martensite, named after the German metallurgist Adolf Martens (1850–1914), is any crystal structure that is formed by displacive transformation, as opposed to much slower diffusive transformations. It includes a class of hard minerals occurring as lathe- or plate-shaped crystal grains. When viewed in cross-section, the lenticular (lens-shaped) crystal grains appear acicular (needle-shaped), which is how they are sometimes incorrectly described. "Martensite" most commonly refers to a very hard constituent of steel (the alloy of iron and carbon) important in some tool steels. The martensite is formed by rapid cooling (quenching) of austenite which traps carbon atoms that do not have time to diffuse out of the crystal structure.
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Noun
1. a solid solution of carbon in alpha-iron that is formed when steel is cooled so rapidly that the change from austenite to pearlite is suppressed; responsible for the hardness of quenched steel
(hypernym) solid solution, primary solid solution
(substance-holonym) quenched steel

A component of iron useful for determining heat treating techniques used, it is a solution of iron and up to 1% carbon.

martensite
danh từ (luyện kim) Mactensit
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Eng: martensite
Urdu: مارٹَن زائٹ ۔ سَخت فولاد کا ایک بُنیادی جُزو ، جو کاربَن اور لوہے کا مُرَکّب ہوتا ہے اور فولاد کو سَخت بَنانے کے عمَل کے دوران فولاد میں موجُود رہتا ہے ۔