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Metal Science and Heat Treatment

, Volume 30, Issue 2, pp 113–116 | Cite as

Pseudoeutectoid in low-carbon unalloyed steel

  • A. G. Nasibov
  • L. V. Popova
  • N. I. Karchevskaya
Structural Steels
  • 23 Downloads

Conclusions

  1. 1.

    Refinement of hot-rolled type St3sp steel contributes to the strengthening (for example, by 120 N/mm2). The resilience (by 10 J/cm2) and the fiber portion in the fracture (by 20%) are simultaneously increased in this case.

     
  2. 2.

    The presence in the structure of a pseudoeutectoid, whose amount ranges from 40 to 60%, depending on the regime, assumes decisive significances in the formulation of properties of low-carbon unalloyed steel after quenching from the rolling heat.

     
  3. 3.

    Quenching from the rolling heat promotes the strengthening of steel St3sp (by 60–80%), but simultaneously gives rise to loss of resilience due to a reduction in the work of crack initiation.

     

Keywords

Crack Initiation Decisive Significance Unalloyed Steel Rolling Heat St3sp Steel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

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Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • A. G. Nasibov
  • L. V. Popova
  • N. I. Karchevskaya

There are no affiliations available

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