Showing results for "pearlite"

• a variation of perlite.

pearlite

American  

[pur-lahyt] / ˈpɜr laɪt /

noun

1. Metallurgy. a microscopic lamellar structure found in iron or steel, composed of alternating layers of ferrite and cementite.

2. Petrography. perlite.

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pearlite British  

/ ˈpɜːlaɪt, pɜːˈlɪtɪk /

noun

1. the lamellar structure in carbon steels and some cast irons that consists of alternate plates of pure iron and iron carbide

2. a variant spelling of perlite

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Other Word Forms

• pearlitic
  adjective

Etymology

Origin of pearlite

First recorded in 1885–90; pearl + -ite ¹

Example Sentences

See Examples For:

pearlite

If the brand of available potting soil doesn’t contain pearlite, she lightens it with some so that pearlite is as much as one-quarter of the blend.

From Seattle Times ● Aug. 9, 2023

Any of these operations not only allows the transformations from austenite to pearlite to proceed, but also relieves internal stresses in the steel.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

Pure iron, having no carbon, naturally would show no pearlite when examined under a microscope; only abutting granules of iron are delicately traced.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

The cementite, although adding to the tensile strength, is very brittle and the strength of the pearlite is the combination of the ferrite and cementite.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

Subsequent cooling gives a coarse texture, or an arrangement of ferrite, cementite and pearlite grains which is greatly coarsened, reflecting the condition of the austenite crystals from which they were born.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)