Macro- and Micromechanics of Pearlitic-Steel Deformation in Multistage Wire Production |
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Authors: | D V Konstantinov A G Korchunov M V Zaitseva O P Shiryaev D G Emaleeva |
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Affiliation: | 1.Nosov Magnitogorsk State Technical University,Magnitogorsk,Russia;2.Magnitogorsk Metalware Plant,Magnitogorsk,Russia |
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Abstract: | Ninefold 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 inclusions. On the basis of finite-element models, the laws governing the reorientation of the pearlite colonies, change in shape and size of the cementite lamellae, and localization of the deformation in the ferrite are determined. The model results are verified by means of metallographic results and industrial experiments. |
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