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The proeutectoid cementite transformation in steels [PDF]
International Materials Reviews, 2009 A comprehensive, critical, and up to date review is presented for the proeutectoid cementite transformation in steels. It is believed that many of the new findings, features, and concepts presented here for this classic phase transformation in steels ...
Milo V Kral
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The effect of alloying elements on cementite coarsening during martensite tempering [PDF]
Acta Materialia, 2020 The effects of anti-segregating elements (Si and Al) and segregating elements (Cr and Mo) on cementite precipitation during tempering of Fe-C-Mn martensites have been quantitatively investigated in terms of both cementite chemistry and particle size ...
Y X Wu, Wenwen Sun, Mark J Styles
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Atomic-scale mechanisms of deformation-induced cementite decomposition in pearlite
Acta Materialia, 2011 Pearlitic steel can exhibit tensile strengths higher than 5 GPa after severe plastic deformation, where the deformation promotes a refinement of the lamellar structure and cementite decomposition. However, a convincing correlation between deformation and
Yujiao Li, Pyuck-Pa Choi, C Borchers
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Kinetics of cementite mechanosynthesis
Hyperfine Interactions, 1992The influence of ball to powder ratio and discontinous milling during ball milling of Fe0.75C0.25 elemental powder mixture is presented. The formation of Fe3C cementite, Hagg and e carbides has been follwed by X-ray diffraction and Mossbauer Spectroscopy. Higher ball to powder ratios induce faster kinetics. Synthesized cementite has crystallite sizes 9
P. MATTEAZZI P. +2 more
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Nanostructured Materials, 1997
Nanocomposites Fe-85 vol.% Fe3C were prepared by mechanosynthesis (MS) of elemental Fe and graphite powders. The crystallite size in the MS powder was about 7 nm for Fe3C and about 8 nm for Fe. These powders were densified by a field assisted sintering process.
T. J. GOODWIN +3 more
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Nanocomposites Fe-85 vol.% Fe3C were prepared by mechanosynthesis (MS) of elemental Fe and graphite powders. The crystallite size in the MS powder was about 7 nm for Fe3C and about 8 nm for Fe. These powders were densified by a field assisted sintering process.
T. J. GOODWIN +3 more
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Corrosion Science, 1974
Abstract The progressive changes in texture which occur during the oxidation of two different preparations of cementite (A and B) have been investigated by electron microscopy. Changes in surface texture observed during the reaction of cementite A with gaseous oxygen were ascribed to the initial formation of a coherent barrier layer of Fe3O4, the ...
A.K. Galwey +3 more
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Abstract The progressive changes in texture which occur during the oxidation of two different preparations of cementite (A and B) have been investigated by electron microscopy. Changes in surface texture observed during the reaction of cementite A with gaseous oxygen were ascribed to the initial formation of a coherent barrier layer of Fe3O4, the ...
A.K. Galwey +3 more
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Nature, 1965
SEVERAL methods for the preparation of the carbides of iron have been reported in the literature. In order to obtain a satisfactory product it may be necessary to use a relatively high temperature1, or long periods of reaction during which reaction conditions must be controlled within narrow limits for several weeks2,3.
J. FREEL, A. K. GALWEY
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SEVERAL methods for the preparation of the carbides of iron have been reported in the literature. In order to obtain a satisfactory product it may be necessary to use a relatively high temperature1, or long periods of reaction during which reaction conditions must be controlled within narrow limits for several weeks2,3.
J. FREEL, A. K. GALWEY
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Free Energy of Formation of Cementite and the Solubility of Cementite in Austenite
JOM, 1951The solubility of cementite in austenite is computed by thermodynamic methods from the observed solubility of graphite. It is found that the solubility of cementite is greater than that of graphite in the entire austenite temperature range. Thus the prior discrepancy between this portion of the phase diagram and the observed metastability of cementite ...
L. S. Darken, R. W. Gurry
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Atomic structure of the austenite-cementite interface of proeutectoid cementite plates
Philosophical Magazine A, 1999Abstract In a previous investigation, the atomic habit plane (or terrace plane) of proeutectoid cementite plates in austenite was deduced to be (113)A‖(101)c (where the subscript A indicates austenite and the subscript C cementite), based on conventional transmission electron microscopy and computer-aided atom matching studies.
J. M. Howe, G. Spanos
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The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, 1968
Abstract Small angle tilt boundaries consisting of uniformly spaced edge dislocations were observed in cementite extracted from an annealed steel. The Burgers vector of the dislocations was identified as [0b0] from their average spacing and the tilt angle between both grains. The [0b0] type dislocation was related with two displacement vectors required
A. Koréeda, K. Shimizu
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Abstract Small angle tilt boundaries consisting of uniformly spaced edge dislocations were observed in cementite extracted from an annealed steel. The Burgers vector of the dislocations was identified as [0b0] from their average spacing and the tilt angle between both grains. The [0b0] type dislocation was related with two displacement vectors required
A. Koréeda, K. Shimizu
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