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Changes in the dislocation arrays of high-strength structural steel during fatigue

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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Transmission electron microscopy and limited-area diffraction analysis showed that cyclic deformation is accompanied by higher dislocation densities, fragmentation of martensite rods, thickening of the boundaries of fragments, and higher misorientation angles.

  2. 2.

    During cyclic loading the structure of the surface layers changes more than that of the inner layers.

  3. 3.

    The total plastic deformation at the level of the fatigue limit is quite small and is quite uneven through the volume of the sample.

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Literature cited

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  6. V. I. Bol'shakov and L. G. Orlov, "Electron microscopic study of dislocation arrays in the inner and surface layers of deformed single crystals of iron silicide," Fiz. Tverd. Tela, 3, 745–751 (1970).

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Authors
  1. V. I. Bol'shakov
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  2. V. S. Zoteev
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  3. L. G. Orlov
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  4. M. A. Tylkin
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Additional information

V. V. Kuibyshev MISI. Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 45–47, February, 1974.

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Bol'shakov, V.I., Zoteev, V.S., Orlov, L.G. et al. Changes in the dislocation arrays of high-strength structural steel during fatigue. Met Sci Heat Treat 16, 144–146 (1974). https://doi.org/10.1007/BF00649791

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  • DOI: https://doi.org/10.1007/BF00649791

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