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Related to pearlite: Bainite, cementite


1. A mixture of ferrite and cementite forming distinct layers or bands in slowly cooled carbon steels.
2. Variant of perlite.


1. (Metallurgy) the lamellar structure in carbon steels and some cast irons that consists of alternate plates of pure iron and iron carbide
2. (Minerals) a variant spelling of perlite
pearlitic adj


(ˈpɜr laɪt)

1. a microscopic lamellar structure found in iron or steel, composed of alternating layers of ferrite and cementite.
pearl•it′ic (-ˈlɪt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pearlite - a lamellar mixture of cementite and ferrite formed during the cooling of austenite; a constituent of steel and cast iron
cast iron - an alloy of iron containing so much carbon that it is brittle and so cannot be wrought but must be shaped by casting
steel - an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
cementite, iron carbide - a chemical compound that is a constituent of steel and cast iron; very hard and brittle
ferrite - a solid solution in which alpha iron is the solvent
globular pearlite, granular pearlite - if steel or iron cool very slowly the cementite may occur in globules instead of in layers
lamellar mixture - a mixture in which substances occur in distinct layers
References in periodicals archive ?
The change of the minimum cooling rate to prevent the formation of pearlite (pearlite would keep the ausferritic microstructure from forming) was linked to the content of the main alloying elements (nckel, molybdenum and copper).
Three main zones were expected at HAZ: sub-critical, heated to less than 723[degrees]C, free of austenite, with some stress relief; intercritical, partial austenite formation on heating which reverts to ferrite pearlite on cooling, and super-critical, complete transformation to austenite, grain refinement or the possibility of growth depending on maximum temperature.
I add grit to a few handfuls of compost for the bottom of the pot and a handful of pearlite to the top.
3] (inflated vermiculite, pearlite, collected dust of rotary kiln of cement, lime and other industries).
The company noted in the application that as Diaoyu Island and nearby islets are at the same latitude as Hengyang, the main producing region for tea oil in China, and substrates such as vermiculite, pearlite and rock wool on Diaoyu Island are ideal for conducting soilless culture high-tech trials, the company has publicly announced its application to lease the islands for breeding tea oil tree seedlings and plans to develop the islands into a leading production facility for the seedlings.
Austempering process is the isothermal transformation of a ferrous alloy at a temperature below that of the pearlite formation and above that of the martensite formation [1].
As the X-ray diffraction technique showed no reflections attributable to the carbidic component, Baumann assumes that the carbides have dissolved in a certain mass of pearlite.
The microstructure of the matrix shows large grains of pearlite in a matrix of ferrite.
The microstructure of the bar consists of a tough core, comprising ferrite, pearlite, and sometimes very little bainite; and tempered martensitic rim.
1a reveals the ferrite-pearlite microstructure of the soft carbon steel with directional oriented pearlite grains.