martensite noun. ['mɑ:tɪnzʌɪt] L19.
[from A. Martens (1850-1914), German metallurgist + -ITE¹.]
Metallurgy. A hard, very brittle solid solution of carbon in iron, formed from austenite when steel is quenched very rapidly.

■ martensitic [mɑ:tɪn'zɪtɪk] adjective pertaining to or containing martensite; involving the formation of martensite (from austenite): E20.

■ marten'sitically adverb L20.

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