Crack nucleation and growth periods in 30CrMnSiNiA steel under repeated-impact tensile loads

  • S. Ya. Yarema
  • E. L. Kharish
Article

Abstract

The article describes the results of a study of the effect of material structure (tempering temperature) and test temperature on the duration of the crack nucleation and growth stages during impact fatigue tests on 30CrMnSiNiA. It was shown that the period of nucleation of microcracks increases with an increasing UTS of the steel. The nucleation of microcracks is not sensitive to temper brittleness of steel. Lowering the test temperature leads to an increase in the crack nucleation period and shortens its growth period.

Keywords

Fatigue Brittleness Material Structure Growth Stage Test Temperature 

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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1972

Authors and Affiliations

  • S. Ya. Yarema
    • 1
  • E. L. Kharish
    • 1
  1. 1.Institute of Physics and MechanicsAcademy of Sciences of the Ukrainian SSRL'vov

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