The equilibrium diagram does not tell us what form is taken by the ferrite or cementite ejected from the austenite on cooling. |
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The harder pearlite is comprised of alternating thin layers or shells of ferrite and cementite, a very hard substance. |
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How stable the carbides are depends on how the element is partitioned between the cementite and the matrix. |
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Perhaps the most familiar structure in steels is that of the eutectoid pearlite, usually a lamellar mixture of ferrite and cementite. |
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Although the softest condition is obtained when the large globules of cementite are embedded in the ferrite, a smooth machined surface is difficult to obtain due to tearing. |
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The microstructure of bainite consists of ferrite and cementite phases, and thus diffusional processes are involved in its formation. |
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Standard rail steel has a predominantly pearlitic structure with a nearly eutectoid content of carbon and fine plates of pearlitic cementite. |
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The cementite which precipitates from the melt forms as relatively large particles. |
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No large inclusions of cementite will form at the boundaries in hypoeuctoid steel. |
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In the present study, various methods were considered to measure the length and width of cementite particles. |
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White cast iron displays white fractured surfaces due to the presence of an iron carbide precipitate called cementite. |
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A so called ribbon-like method was proposed for measuring particles for discrimination lamellae from spheroids of cementite particles in pearlitic steels. |
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Annealing time depends mostly on carbon content and also on the amount of alloying elements which decrease carbon infusibility in ferrite or stabilise cementite. |
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The microstructure of the material supplied by the manufacturer was composed of a mixture of ferrite, globular cementite and primary chromium carbides. |
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Some consider granular pearlite or granular cementite to be sorbite. Hence it is also called sorbitic pearlite, and when referring to the contained carbon, sorbitic carbide. |
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The two, ferrite and cementite, precipitate simultaneously producing a layered structure called pearlite, named for its resemblance to mother of pearl. |
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