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2004
In the days before microscopy had become common practice, the iridescent appearance of the surfaces of certain steels under close observation led the structures concerned to he called pearlite.
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In the days before microscopy had become common practice, the iridescent appearance of the surfaces of certain steels under close observation led the structures concerned to he called pearlite.
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Metallurgical Transactions, 1970
A high purity Fe-C alloy of eutectoid composition has been transformed from homogenized austenite in two ways: isothermally and at forced constant-velocity. The latter transformation mode, forced over five decades of velocity, produces structures with characteristic dimensions ranging over nearly two orders of magnitude. There is a consistent alignment
G. F. Bolling, R. H. Richman
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A high purity Fe-C alloy of eutectoid composition has been transformed from homogenized austenite in two ways: isothermally and at forced constant-velocity. The latter transformation mode, forced over five decades of velocity, produces structures with characteristic dimensions ranging over nearly two orders of magnitude. There is a consistent alignment
G. F. Bolling, R. H. Richman
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Accelerated Spheroidization of Pearlite
Metal Science Journal, 1968AbstractA study has been made of the spheroidization of pearlite in eutectoid steel at 700° C under conditions of lengthy annealing, cold working at room temperature followed by annealing, hot torsion, and hot fatigue. The results show that hot torsion accelerates spheroidization by a factor of ∼ 104 compared with annealing but that acceleration by a ...
E. A. Chojnowski, W. J. McG. Tegart
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The crystallography and nucleation of pearlite
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1973Abstract By choice of a suitable iron—manganese—carbon alloy it has been possible to study pearlite nodules growing in austenite, without the austenite transforming on cooling to room temperature. Thin foil electron microscopy has been used to examine the orientation relations between cementite, ferrite and austenite as well as ...
R. J. Dippenaar +1 more
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Cementite morphology in pearlite
Acta Metallurgica, 1956Abstract Some characteristic growth patterns of cementite in pearlite, revealed by electron microscopy, are discussed in terms of the geometry of growth and of diffusion and surface energy factors. These include 1. (a) linear discontinuities in the lamellar structure, which are shown to be one possible origin of branching, 2.
F.C Frank, K.E Puttick
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On the kinetics of the pearlite reaction
JOM, 1957Existing kinetic data on the pearlite reaction are reevaluated in terms of recently derived rate laws. It is found that the nucleation rate varies more rapidly with temperature than previously supposed, and that for eutectoid steels below about 660°C the nucleation rate is high enough for the transformation rate to become independent of the nucleation ...
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Electropulsing of pearlitic steels
2016Electropulsing is a process characterised by the application of short duration (~100μs) electrical current pulses. The process is claimed to be capable of stimulating microstructure change in a variety of metals at low temperatures and energy levels. In this thesis, electropulsing is applied to examine its potential to produce nanostructured, strong ...
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The edgewise growth of pearlite
Acta Metallurgica, 1968Abstract The edgewise growth rate of pearlite into austenite has been computed on the assumptions that interface diffusion is the dominant means of carbon transport and that local equilibrium exists across all interfaces. The effects of capillarity and of imperfect carbon segregation are taken into account.
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Pearlite, Ferrite, and Cementite
2015The microstructure of carbon steel is largely determined by the transformation of austenite to ferrite, cementite, and pearlite. This chapter focuses on the microstructures produced by diffusion-controlled transformations that occur at relatively low cooling rates.
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Alloy Digest, 1959
Abstract PEARLITIC MALLEABLE IRON is a high strength cast iron recommended for dependable service, strength and machinability in highly stressed parts at work in mobile and stationary mechanisms. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear ...
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Abstract PEARLITIC MALLEABLE IRON is a high strength cast iron recommended for dependable service, strength and machinability in highly stressed parts at work in mobile and stationary mechanisms. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear ...
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