cementite

ce·ment·ite

C0193900 (sĭ-mĕn′tīt′)n. A hard brittle iron carbide, Fe₃C, found in steel with more than 0.85 percent carbon.

[From cement.]

cementite

(sɪˈmɛntaɪt) n (Elements & Compounds) the hard brittle compound of iron and carbon that forms in carbon steels and some cast irons. Formula: Fe3C

ce•ment•ite

(sɪˈmɛn taɪt)

n. an iron carbide, Fe₃C, a constituent of steel and cast iron, sometimes with part of its iron replaced by another metal, as manganese. [1885–90]

Thesaurus

Noun

cementite - a chemical compound that is a constituent of steel and cast iron; very hard and brittleiron carbidechemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weightpearlite - a lamellar mixture of cementite and ferrite formed during the cooling of austenite; a constituent of steel and cast iron

Cementite

cementite

[si′men‚tīt] (metallurgy) Fe₃C A hard, brittle, crystalline compound occurring as lamellae or plates in steel. Also known as iron carbide.

Cementite

an iron carbide, Fe₃C; a phase and structural component of iron-carbon alloys (seeIRON-CARBON ALLOYS). Cementite has an orthorhombic crystal lattice. It is very hard and brittle and is slightly magnetic at temperatures up to 210°C. It is a metastable phase; the formation of the stable phase—graphite—is in many cases difficult. Cementite is precipitated from a melt consisting of austenite and ferrite. Depending on the crystallization conditions and subsequent treatment, it can have various forms, such as equiaxial grains, lattices along grain boundaries, and plates; it can also exhibit a Widmannstatten structure. Cementite is a constituent of the structural components of steel and cast iron—ledeburite, pearlite, bainite, and tempered sorbite.

REFERENCE

Bunin, K. P., and A. A. Baranov. Metallografiia. Moscow, 1970.

cementite

ce·ment·ite

cementite

ce•ment•ite

Cementite

cementite

Cementite

REFERENCE

cementite

Synonyms for cementite

noun a chemical compound that is a constituent of steel and cast iron

Synonyms

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