pearlite


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Related to pearlite: Bainite, cementite

pearl·ite

 (pûr′līt′)
n.
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.

pearlite

(ˈpɜːlaɪt)
n
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

pearl•ite

(ˈpɜr laɪt)

n.
1. a microscopic lamellar structure found in iron or steel, composed of alternating layers of ferrite and cementite.
[1885–90]
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.
Translations
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.