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Influence of structure on the crack resistance of a high-strength structural steel

  • Structural Steels
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Metal Science and Heat Treatment Aims and scope

Abstract

The reliability and service life of parts fabricated from high-strength steels are largely determined by such characteristics as fracture toughness (K Ic ), endurance limit (σ−1), including the low-cycle region, and the rate of fatigue crack propagation (dl/dN). In recent years, there has been an upsurge of interest among investigators in the possibility of improving these parameters by imparting an optimal structure and phase composition to structural steels during their final heat treatment. This study was undertaken to see how the structure (lower bainite, retained austenite, and others) and its parameters affect the reliability and character of fracture of VKS-9 (35KhS2N3M1FA) steel.

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Authors and Affiliations

  1. All-Russia Institute of Aircraft Materials, Moscow, Russia

    N. G. Pokrovskaya, L. N. Belyakov, I. P. Zhegina & E. Yu. Grigor'eva

Authors
  1. N. G. Pokrovskaya
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  2. L. N. Belyakov
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  3. I. P. Zhegina
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  4. E. Yu. Grigor'eva
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Pokrovskaya, N.G., Belyakov, L.N., Zhegina, I.P. et al. Influence of structure on the crack resistance of a high-strength structural steel. Met Sci Heat Treat 39, 415–420 (1997). https://doi.org/10.1007/BF02484226

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  • DOI: https://doi.org/10.1007/BF02484226

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