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Effect of Excess Phase Precipitation on Strengthening of Structural Steels Prepared by Hot Stamping

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Metallurgist Aims and scope

The contribution of nano-sized precipitates to hardening metal products prepared by hot stamping from microalloyed niobium and titanium steels is evaluated. In order to calculate the characteristics of carbide precipitates (quantity, size), kinetics are modeled for their precipitation from austenite. It is shown that the increase in yield strength due to microalloying steel with niobium is greater than with titanium, and it increases with increase in their content. With a concentration of 0.1% each of Nb and Ti, the contribution to hardening steel with 0.3% C reaches 186 and 129 MPa, respectively.

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Research was conducted due to a grant from the Russian Scientific Fund (project No. 18–79–00298) to FGUP I. P. Bardin TsNIIchermet.

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Authors and Affiliations

  1. FGUP I. P. Bardin TsNIIchermet, Moscow, Russia

    A. V. Koldaev, F. V. Arifulov, A. I. Zaitsev & N. M. Alexandrova

  2. M. V. Lomonosov Moscow State University, Moscow, Russia

    A. I. Zaitsev & N. A. Arutyunyan

Authors
  1. A. V. Koldaev
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  2. F. V. Arifulov
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  3. A. I. Zaitsev
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  4. N. A. Arutyunyan
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  5. N. M. Alexandrova
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Corresponding author

Correspondence to A. V. Koldaev.

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Translated from Metallurg, Vol. 64, No. 5, pp. 50–55, May, 2020.

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Koldaev, A.V., Arifulov, F.V., Zaitsev, A.I. et al. Effect of Excess Phase Precipitation on Strengthening of Structural Steels Prepared by Hot Stamping. Metallurgist 64, 438–445 (2020). https://doi.org/10.1007/s11015-020-01014-8

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  • DOI: https://doi.org/10.1007/s11015-020-01014-8

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