Meaning of pearlite in English:


Pronunciation /ˈpəːlʌɪt/


mass nounMetallurgy
  • A finely laminated mixture of ferrite and cementite present in cast iron and steel, formed by the cooling of austenite.

    ‘The structure now consists of free cementite and pearlite.’
    • ‘Ductility and impact properties are principally determined by the proportions of ferrite and pearlite in the matrix.’
    • ‘It is important to note that higher silicon contents can promote pearlite and may increase the nickel requirement.’
    • ‘The pearlite is responsible for substantial strengthening.’
    • ‘This reduces the amount of pearlite and improves toughness, ductility, and weldability.’


Late 19th century from pearl+ -ite.