Influence of tempering modes on fine structure parameters, stress and hardness of 25Cr2Mo1V steel

Authors

  • S.V. Bobyr Nekrasov Iron and Steel Institute of NAS of Ukraine, Dnipro
  • G.V. Levchenko Nekrasov Iron and Steel Institute of NAS of Ukraine, Dnipro
  • A. Yu. Borisenko Nekrasov Iron and Steel Institute of NAS of Ukraine, Dnipro
  • N.O. Kutseva Dnipropetrovsk National University, Dnipro

DOI:

https://doi.org/10.15407/mom2019.03.016

Keywords:

steel, fine structure, crystal lattice parameter, hardness, stress, release

Abstract

The results of studies on the effect of tempering regimes on the parameters of fine structure, stress and hardness of 25Cr2Mo1V steel are presented. It is shown that the secondary hardness of steel 25Cr2Mo1V, tempered at a temperature of 550 °C, maximum after 5 hours release and is due to the smallest block size of the crystal lattice. It is established that in the initial stages of decay of the supersaturated solid a-solution of hardened 25X2M1F steel at 550 °C, the crystal lattice parameters increase. During the next tempering  time, the bonding of the crystal lattices of these phases is broken, due to the separation of the carbide particles from the a-phase and the parameter and the crystal lattice of the a-phase decreases.

References

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Published

2019-09-30

How to Cite

Bobyr С., Levchenko Г., Borisenko А., & Kutseva Н. (2019). Influence of tempering modes on fine structure parameters, stress and hardness of 25Cr2Mo1V steel. Scientific Technical Journal ‘’Metal Science and Treatment of Metals’’, 25(3), 16–22. https://doi.org/10.15407/mom2019.03.016

Issue

Vol. 25 No. 3 (2019): Scientific Technical Journal Metal Science and Treatment of Metals

Section

HEAT AND CHEMICAL-THERMAL TREATMENT

License

Copyright (c) 2019 S.V. Bobyr, G.V. Levchenko, A. Yu. Borisenko, N.O. Kutseva

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.