Cementite occurs in steels, in meteorites, possibly at the core of the Earth and has uses in its pure form. It's composition can deviate from , but not by much because the Fe–C bond contributes to its cohesion. Its crystallographic unit cell is orthorhombic and primitive, with large lattice parameters, explaining its hardness.
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Thermal, compositional, and compressional demagnetization of cementite
The 1 bar Curie temperature, T C , at which cementite (anthropogenic form of the mineral cohenite, nominally Fe 3 C) abruptly loses ferromagnetism, is found to be sensitive to small deviations from the stoichiometric cementite composition. Stoichiometric Fe 3 C begins to lose magnetic susceptibility at 187 °C.
Walker, David +3 more
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The aim of the studies performed was to assess an influence of crystallographic orientation relationship (OR) between pearlitic ferrite and cementite on a stability of cementite plates. Diffraction analysis made with an electron microscope showed the existence of the Bagaryatski OR and the Pitsch OR both in the pearlite structure after eutectoid ...
Andrzej Czarski +2 more
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Precipitation Dynamics Analysis on Cementite in 0. 2 C-1.25 Si-2.0 Mn Q&P Steel
In order to study the effect of soaking process in critical zone of Q&P ( Queching and Partition) steel on the cementite precipitation during partitioning process, the PTT ( precipitation amount-temperature-time) curves of the cementite precipitation of ...
何方 +4 more
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Kinetic Modeling of Grain Boundary Cementite Evolution [PDF]
Prediction of grain boundary cementite growth kinetics in hypereutectoid steels is necessary to control its thickness. It is a question of major industrial importance but has remained unresolved to date. This paper presents and compares two different and
Povoden-Karadeniz, Erwin; orcid: +6 more
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Phase and Melting Relations of Fe3C to 300 GPa and Carbon in the Core
This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Suguru Takahashi +9 more
wiley +2 more sources
Mechanism of Si on the Cementite Type Transformation in As-cast High Carbon Chromium Bearing Steel [PDF]
Four as-cast high carbon chromium bearing steels with different Si contents (0. 29%、0. 42%、0. 71% and 1. 50%)were prepared using a vacuum induction furnace, the carbides in the steel were extracted by nonaqueous solution electrolysis method.
Xu Taixu, He Zhijun, Yang Xin, Qiao Xiya, Huang Yufei
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The work hardening behavior of α + θ UFG steel related to α + θ two phase microstructure is more complicated than that of single-phase materials. Very few studies have been conducted on the work hardening of α + θ UFG steels.
Zhoutou Wang +4 more
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INFLUENCE STRUCTURE ON THE PLASTICITY OF CARBON STEEL OF THE RAILWAY WHEEL RIM IN OPERATION [PDF]
When simulating the operating conditions of the rim of a railway wheel, an analysis of change in the structural state from the possible degree of plastic deformation and the heating temperature of steel near the rolling surface was carried out.
Igor Alex VAKULENKO +5 more
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Finite element analyses of elasto-plastic deformation in pearlite lamellar and colony structures [PDF]
Elasto-plastic tensile deformations in pearlite lamellar and two-colony structures are studied by finite element analyses to investigate the effects of lamellar thickness ratio and difference of lamellae orientation of two colonies in pearlite ...
39692 +12 more
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