martensite

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 (synset 114972515)
    is a type of: primary solid solution, solid solution - a homogeneous solid that can exist over a range of component chemicals; a constituent of alloys that is formed when atoms of an element are incorporated into the crystals of a metal
    substance meronym: quenched steel - steel that has been hardened by immersing it in water or oil to cool it

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