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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Pearlite or vermiculite are two minerals that can lighten a soil more effectively than Styrofoam peanuts.
It makes me feel so proud that I am a Pearlite.aACA[yen]
It is 16 % allotriomorphic ferrite (with Widmanstatten plates) along prior austenite boundaries, and the remainder is Widmanstatten ferrite (finer plates), with ~40 % of what appears to be pearlite. In the associated HAZ, areas show coarse- and fine-grained zones.
The results are shown in Figure 1, which indicate that the C70S6 consists of a large number of fine pearlite and a small amount of intermittent network-like ferrite.
The microstructure of weld metal (Figure 8(a)) shows ledeburitic carbide, alloyed pearlite and graphite nodules.
* The premature fracture in the tensile test was accompanied by a change in fracture mode in the pearlite matrix from ductile tearing to transgranular cleavage.
Structure of Brinar 400 (Figure 5(a)) after full annealing followed by cooling at 0.1[degrees]C/s is composed of banded arrangement of equilibrium ferrite grains with fine-lamellar pearlite. On ferrite grain boundaries, precipitates of tertiary cementite can be clearly observed; see Figure 6(a).
The microstructures of the weld junction and heat-affected zone (HAZ) changed to a mixture of ferrite and pearlite (Figures 2(c) and 2(d)).
The resulting microstructure was a mixture of martensite and bainite with small amounts of pearlite and retained austenite and exhibited no appreciable effects of deformation.
Normalization (obtained structure pearlite + ferrite) thought gives similar impact toughness indices as the tempering, but increases the resistance to crack propagation.
7: Etched with 2% Nital shows typical phase structure of 5X with primary graphite on pearlite matrix and secondary fine graphite on ferritic structure
Result of Material analysis Details Specification Observation Sample-1 Sample-2 Sample-3 Material Grade SG 500/7 SG 500/7 Hardness 160-240BHN 212 207 223 Nodulargraphite Nodularity: Graphite Nodular graphite Micro structure Form- V & VI Nodularity: Graphite Form - VI Matrix-Ferrite Ferrite (50%) Pearlite (50%) Pearlite Table 4.