Results 121 to 130 of about 187 (155)

Fragmentation of as-drawn pearlitic steel wires during torsion tests

Engineering Fracture Mechanics, 1998
Abstract 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, A. Martı́n-Meizoso, J. Gil-Sevillano, I. Lefever, E. Aernoudt   +4 more
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Analysis of the Plasticity Characteristics of Progressively Drawn Pearlitic Steel Wires

Materials Science, 2016
The 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, J. Toribio, H. M. Nykyforchyn   +2 more
openaire   +1 more source

Computer Simulation of Micro-Mechanic in Pearlitic Steel Wire Drawing

Materials Science Forum, 2020
Cold-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, Boris Zaritskiy, Denis Pustovoytov   +2 more
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Hardening and softening mechanisms of pearlitic steel wire under torsion

Materials & Design, 2014
Abstract The mechanical behaviors and microstructure evolution of pearlitic steel wires under monotonic shear deformation have been investigated by a torsion test and a number of electron microscopy techniques including scanning electron microscopy (SEM) and transmission electron microscopy (TEM), with an aim to reveal the softening and hardening ...
Tian-Zhang Zhao, Shi-Hong Zhang, Guang-Liang Zhang, Hong-Wu Song, Ming Cheng   +4 more
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Microstructure and strengthening mechanisms in cold-drawn pearlitic steel wire

Acta Materialia, 2011
Abstract Strengthening mechanisms and strength–structure relationships have been analyzed in a cold-drawn pearlitic steel with a structural scale in the nanometer range and a flow stress of about 3.5 GPa. The wires have been drawn up to a strain of 3.7 and the structures analyzed and quantified by transmission electron microscopy and high resolution ...
Xiaodan Zhang, Andy Godfrey, Xiaoxu Huang, Niels Hansen, Qing Liu   +4 more
openaire   +1 more source

Cementite dissolution in heavily cold drawn pearlitic steel wires

Acta Materialia, 1997
The 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, G. Kapelski, B. Baudelet   +2 more
openaire   +1 more source

Deformation bands in fully pearlitic steel during wire drawing

Science China Technological Sciences, 2014
The 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, Bo Song, BaiFeng Luan, ZhiQian Chen, Qing Liu   +4 more
openaire   +1 more source

Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion

Journal of Iron and Steel Research International, 2016
Abstract 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, Guang-liang Zhang, Shi-hong Zhang, Ling-yun Zhang   +3 more
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Strain-Induced Dissolution of Cementite in Cold-Drawn Pearlitic Steel Wires

Metallurgical and Materials Transactions A, 2020
Strain-induced dissolution of cementite is one of the most important microstructural changes undergone by a pearlitic steel wire during cold drawing, and hence must be adequately taken into account in the microstructure–property relationship. Despite extensive studies of cementite dissolution, the kinetics of dissolution is still lacking.
Nicolas Guelton, Marc François
openaire   +1 more source

Effect of interlamellar spacing on cementite dissolution during wire drawing of pearlitic steel wires

Scripta Materialia, 2000
Cold drawing is an effective process to increase the strength of fully pearlitic steels with an acceptable level of ductility. Microstructural changes and deformation behavior of the pearlite during wire drawing are closely related to the initial microstructure of the pearlite.
Nam, WJ, Bae, CM, Oh, SJ, Kwon, SJ
openaire   +2 more sources