Results 81 to 90 of about 122 (113)
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Microstructure–Property Relationship in Cold-Drawn Pearlitic Steel Wires
Metallurgical and Materials Transactions A, 2020The difficulty in predicting flow stress of a cold-drawn pearlitic steel wire arises from the complex microstructural transformations induced by cold drawing. For assessing properly the different contributions to strengthening, four quantities must first be expressed as a function of strain $$ \varepsilon $$: (i) residual volume fraction of cementite; (
Nicolas Guelton, Marc François
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Macro- and Micromechanics of Pearlitic-Steel Deformation in Multistage Wire Production
Steel in Translation, 2018Ninefold drawing of pearlitic steel wire is investigated. On the basis of multiscale computer models, the behavior of pearlite colonies at the surface of the wire and in its central layer is analyzed. The key factors are the orientation of the cementite lamellae relative to the drawing axis, the interlamellae distance, and the shape of the cementite ...
D. V. Konstantinov +4 more
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Mechanical and Thermal Stability of Heavily Drawn Pearlitic Steel Wire
MRS Proceedings, 1996AbstractHaving interlamellar spacings on the nanometer scale, there is no doubt about considering heavily drawn pearlitic steel wire as a nano-layered material. This extremely fine structure is of great technical importance: indeed, as the interlamellar distance determines the onset of plastic flow, the wire can be brought to a tensile strength beyond ...
Etienne Aernoudt +5 more
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Fragmentation of as-drawn pearlitic steel wires during torsion tests
Engineering Fracture Mechanics, 1998Abstract During free end torsion tests of cold drawn eutectoid steel wire, primary fracture frequently causes further fragmentation of the wire. The size and orientation distribution of the pre-existing microcracks at the moment of the primary fracture, and the unloading stress waves determine the secondary fracturing behaviour.
B. Goes +4 more
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Computer Simulation of Micro-Mechanic in Pearlitic Steel Wire Drawing
Materials Science Forum, 2020Cold-drawn high-carbon steel wire with pearlite microstructure is one of the most popular raw materials for modern reinforcing ropes. Lamellae thinning, changes in interlamellar interface and metallographic texture, strain localization is the main property-forming phenomena in the wire drawing process. However, the experimental study of these phenomena
Dmitriy Konstantinov +2 more
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Microstructure evolution in pearlitic steels during wire drawing
Acta Materialia, 2002Abstract Major processes affecting microstructure of a drawn pearlitic wire including lamellae thinning, changes in inter-lamellar interface and metallographic and crystallographic texture, plastic flow localization, and dynamic strain aging were characterized. Heavily drawn pearlite represents a nano-composite with thickness of ferrite and cementite
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Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion
Journal of Iron and Steel Research International, 2016Abstract The fracture characteristics of fully pearlitic steel wires with fine and randomly oriented lamellae have been investigated after tension and torsion, respectively. It is found that the predominant fracture mode under small pre-deformation is dimple.
Tian-zhang Zhao +3 more
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Analysis of the Plasticity Characteristics of Progressively Drawn Pearlitic Steel Wires
Materials Science, 2016The changes in the plasticity characteristics of prestressing steel wires in air and in hydrogenating environments caused by the process of cold drawing are investigated on the basis of slow strain-rate tests on smooth specimens. The tested pearlitic steel is highly susceptible to hydrogen embrittlement in all stages of cold drawing.
М. І. Hredil +2 more
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Deformation bands in fully pearlitic steel during wire drawing
Science China Technological Sciences, 2014The deformation of fully pearlitic steels during wire drawing has been investigated for both longitudinal section and transverse section by back-scattered electron imaging (BSEI), electron back-scattered diffraction (EBSD), and transmission electron microscope (TEM).
Ning Guo +4 more
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Cementite dissolution in heavily cold drawn pearlitic steel wires
Acta Materialia, 1997The influence of cold wire drawing on the structure of a pearlitic steel containing 0.7 wt% of carbon and subjected to a strain of approximately 3.5 has been studied. The as-deformed microstructure is very fine, with an interlamellar spacing close to 20 nm, and contains high internal elastic strains.
J. Languillaume +2 more
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