martensite

[mahr-tn-zahyt]

mar·tens·ite

[mahr-tn-zahyt]
noun Metallurgy.
a metastable microconstituent of any of various forms of carbon steel, produced by undercooling sufficiently below the normal transformation temperature, especially a hard, brittle product of the decomposition of austenite, produced in this way.

Origin:
1895–1900; named after Adolf Martens (died 1914), German metallurgist; see -ite1

mar·ten·sit·ic [mahr-tn-zit-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Martensite is always a great word to know.
So is law of periods. Does it mean:
says square of period of any planet is proportional to cube of semimajor axis of its orbit
state of an object when sum of all forces acting on it equal zero
Collins
World English Dictionary
martensite (ˈmɑːtɪnˌzaɪt)
 
n
a constituent formed in steels by rapid quenching, consisting of a supersaturated solid solution of carbon in iron. It is formed by the breakdown of austenite when the rate of cooling is large enough to prevent pearlite forming
 
[C20: named after Adolf Martens (died 1914), German metallurgist]
 
martensitic
 
adj

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