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Effect of Stress-strain State during Helical Rolling on Metal and Alloy Structure and Ductility

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Metallurgist Aims and scope

A working hypothesis is proposed for the mechanism of the effect of deformation regimes on granular structure and phase fineness governing an increase in ductility for silumins and low-alloy steels. In particular, an alternating nature of deformation during helical rolling (HR) provides a reduction in grain size by a factor of 5–6 compared with longitudinal rolling. For hypereutectic silumins with HR it is possible to obtain a polygonized subgranular structure, to increase α-solid solution grain and silicon crystal fineness, giving them a globular shape, and thereby provide a capacity for treatment under pressure. An important role in increasing deformation capacity of silumins is played by the new technology of melt modifying treatment and optimum temperature-rate deformation regimes.

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Authors and Affiliations

  1. Yeltsin Ural Federal University (UrFU), Ekaterinburg, Russia

    A. A. Bogatov

  2. Tsvetmetobrabotka, Moscow, Russia

    E. I. Panov

Authors
  1. A. A. Bogatov
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  2. E. I. Panov
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Correspondence to A. A. Bogatov.

Additional information

Translated from Metallurg, No. 5, pp. 75–81, May, 2013.

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Bogatov, A.A., Panov, E.I. Effect of Stress-strain State during Helical Rolling on Metal and Alloy Structure and Ductility. Metallurgist 57, 434–441 (2013). https://doi.org/10.1007/s11015-013-9751-8

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  • DOI: https://doi.org/10.1007/s11015-013-9751-8

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